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PUBLIC    DOCUMENT    No.  47  C 

State    Geological  and    Natural 

History   Survey   T^''^^^ 

COMMISSIONERS 

ROLLIN  S.  Woodruff,  Governor  of  Connecticut  (Chairman') 
Arthur  Twining  Hadley,  President  of  Yale  University    '  JNOT 

Bradford  Paul  Raymond,  President  of  Wesleyan  University    JP^Ol'" 
Flavel  Sweeten  Luther,  President  of  Trinity  College  {Secretary) 
RUFUS  Whittaker  Stimson,  President  of  Connecticut  Agricultural  College 

SUPERINTENDENT 
William  North  Rice 


Bulletin  No.  8 


Hartford  Press 
The  Case,  Lockwood  &  Brainard  Gsmpany 

1907 


BIBLIOGRAPHY 


OF  THE 


GEOLOGY  OF  CONNECTICUT 


By 
HERBERT  ERNEST  GREGORY,  Ph.D., 

Professor  ofJGeology  in  YaJe  University 


Hartford  Press 
The  Cas€,  Lockwood  &  Brainard  Company 

1907 


^6 


PREFACE. 


During  the  past  five  years  the  undersigned  has  had  occasion 
to  examine  critically  the  geological  literature  of  Connecticut. 
The  list  of  papers  read,  and  the  notes  made  during  these  years, 
are  here  presented,  with  the  hope  that  they  may  be  useful  to 
students  interested  in  the  subject. 

The  list  of  titles  is  believed  to  be  practically  complete  to 
January,  1906,  and  a  few  papers  of  more  recent  date  have  been 
added.  Articles  in  the  local  newspapers,  and  descriptions  in 
text-books  have  been  omitted. 

In  preparing  the  notes  an  effort  has  been  made  wherever 
practicable  to  give  the  author's  main  conclusions,  instead  of 
describing  the  table  of  contents.  This  is  not  attempted  with 
the  larger  and  more  general  works.  With  the  exception  of  a 
few  instances,  no  attempt  has  been  made  to  estimate  the  value 
of  the  various  papers,  and  some  have  been  included  because 
of  their  historic  interest.  A  list  of  geological  maps,  including 
those  used  as  illustrations  accompanying  reports,  follows  the 
list  of  papers.  The  articles  catalogued  are  numbered  serially. 
Numbers  from  500  upward  are  used  for  the  maps. 

Thanks  are  due  to  Mr.  Freeman  Ward  for  valuable  and 
expert  assistance  in  preparation  of  the  notes,  and  to  Miss 
Elfreda  Cutting  and  Miss  Lucy  Bush  for  assistance  in  prepara- 
tion of  the  Index. 

The  writer  will  be  pleased  to  receive  notice  of  errors  in  this 
bulletin,  especially  of  omitted  articles. 

HERBERT  E.  GREGORY. 
New  Haven,  April,  1907. 


LIST   OF   PUBLICATIONS   EXAMINED,   TOGETHER   WITH 
LIST  OF  ABBREVIATIONS  USED. 


A 

Am.  Acad.  Arts  Set.,  Metn.  Memoirs  of  the  American  Academy  of 
Arts  and  Sciences. 

Am.  Assoc.  Adv.  Set.,  Proc.  Proceedings  of  the  American  Association 
for  the  Advancement  of  Science. 

Am  Geol.     The  American  Geologist. 

Am.  Inst.  Min.  Eng.,  Trans.  Transactions  of  the  American  Institute  of 
Mining  Engineers. 

Am.  Jour.  Set.     The  American  Journal  of  Science. 

Am.  Min.  Jour.     The  American  Mineralogical  Journal. 

Am.  Nat.     The  American  Naturalist. 

Am.  Phil.  Sac,  Proc.  Proceedings  of  the  American  Philosophical  So- 
ciety. 

—  —  Trans.    Transactions  of  the  American  Philosophical  Society. 

Assoc.  Am.  Geol.,  Trans.  Transactions  of  the  Association  of  Ameri- 
can Geologists. 

Atlantic  Mon.     The  Atlantic  Monthly. 

B 

Boston  Soc.   Nat.   Hist.,  Mem.     Memoirs   of   the   Boston    Society   of 

Natural  History. 

•  Proc.     Proceedings  of  the  Boston  Society  of  Natural  History. 

British  Assoc.  Adv.  Sci.,  Kept.     Report  of  the  British  Association  for 

the  Advancement  of  Science. 

C 

Can.  Nat.     The  Canadian  Naturalist. 

Can.  Rec.  Sci.     The  Canadian  Record  of  Science. 

Census  of  U.  S.,  Kept.    Report  of  the  Census  of  the  United  States. 

Cincinnati  Soc.  Nat.  Hist.,  Jour.  Journal  of  the  Cincinnati  Society 
of  Natural  History. 

Connecticut  Acad.  Arts  Sci.,  Mem.  Memoirs  of  the  Connecticut  Acad- 
emy of  Arts  and  Sciences. 

Trans.     Transactions  of  the  Connecticut  Academy  of  Arts  and 

Sciences. 

Connecticut  Board  Agric,  Rept.  Report  of  the  Connecticut  Board  of 
Agriculture. 


8  CONNECTICUT  GEOL.  AND  NAT.   HISTORY  SURVEY.      [Bull. 

Connecticut  Mag.     The  Connecticut  Magazine. 
Connecticut  Quart.     The  Connecticut  Quarterly. 
Connecticut  Sell.  Doc.     Connecticut  School  Document. 
Connecticut  State  Geol.  Nat.  Hist.  Surv.,  Bull.     Bulletin  of  the  Con- 
necticut  State   Geological   and   Natural   History   Survey. 

E 

Eclectic  Mag.     The  Eclectic  Magazine  of  Foreign  Literature,  Science, 

and  Art. 
Eng.  Min.  Jour.  ,  Engineering  and  Mining  Journal. 

G 

Geol.  Mag.     The  Geological  Magazine. 

Geol.  Soc.  America,  Bull  Bulletin  of  the  Geological  Society  of 
America. 

Geol.  Soc.  London,  Proc.  Proceedings  of  the  Geological  Society  of 
London. 

Quart.  Jour.     The  Quarterly  Journal  of  the  Geological   Society 

of  London. 

Geol.  Surv.  Pennsylvania  (2d),  Rcpt.  Report  of  the  Second  Geologi- 
cal Survey  of  Pennsylvania. 

Geol.  Surv.  Wisconsin.     Geological  Survey  of  Wisconsiw. 

Geol.  Massachusetts,  Final  Kept.  Final  Report  of  the  Geology  of 
Massachusetts. 

Geol.  New  Hampshire.     Geolog>'  of  New  Hampshire. 

Geol.  Pennsylvania.     Geology  of   Pennsylvania. 

I 

Internat.  Cong.  Geol.,  Rept.  Am.  Comm.  International  Congress  of 
Geologists,  Report  of  the  American  Committee. 

J 

Johns  Hopkins  Univ.  Cire.    Johns  Hopkins  University  Circulars. 
Jour.  Geol.     The  Journal  of  Geology. 

Jour.  Phys.  Chim.  Journal  de  Physique,  de  Chimie,  et  de  I'Histoire 
Naturelle,  par  J.  C.  de  La  Metherie. 

L 

Leonhard,  Zeiisch.  Zeitschrift  fiir  Mineralogie,  von  K.  C.  von  Leon- 
hard. 

M 
Macfarlane's  Am.  Geol.  R.  R.  Guide.     An  American  Geological  Rail- 
way Guide,  by  James  MacFarlane. 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  9 

Meriden  Sci.   Assoc,   Trans.     Transactions   of   the   Meriden    Scientific 

Association. 
Min.  Mag.  Jour.  Min.  Soc.  London.     The  Mineralogical  Magazine  and 

Journal  of  the  Mineralogical  Society  of  London. 
Mon.  Weath.  Rev.     The  Monthly  Weather  Review. 
Mus.    Camp.    Zool.,   Bull.      Bulletin    of   the    Museum   of    Comparative 

Zoology,  Harvard  University. 

N 
Nat.  Acad.  Sci.,  Biog.   Mem.     Biographical   Memoirs  of  the   National 

Academy  of  Sciences. 

Mem.     Memoirs  of  the  National  Academy  of  Sciences. 

Nat.  Geog.  Mon.     National  Geographic  Monographs. 

Nezv  York  Acad.  Sci.,  Ann.     Annals  of  the   New  York  Academy  of 

Sciences. 

Trans.     Transactions  of  the  New  York  Academy  of  Sciences. 

Neues  Jahrb.     Neues  Jahrbuch  fiir  Mineralogie,  Geologic,  und  Palseon- 

tologie. 

P 

Petermann,  Mitthcil.  Mittheilungen  aus  Justus  Perthes'  Geograph- 
ischer  Anstalt  uber  wichtige  neue  Erforschungen  auf  dem  Ge- 
sammtgebiete  der  Geographie,  von   A.   Petermann. 

Phil.  Mag.    The  Philosophical  Magazine. 

Pop.  Sci.  Mon.     The  Popular  Science  Monthly. 

S 
Sell.  Mines  Quart.     The  School  of  Mines  Quarterly. 
Scient.  Am.  Siipp.     Scientific  American  Supplement. 
Smithson.  Contr.  Knozvl.     Smithsonian  Contributions  to  Knowledge. 

Report.     Annual  Report  of  the  Smithsonian  Institution. 

Soc.  geol.  France,  Bull.     Bulletin  de  la  Societe  geologique  de  France. 

T 
Tech.  Quart.     The  Technology  Quarterly  and  Proceedings  of  the  So- 
ciety of  Arts. 

U 

U.  S.  Dept.  Agric,  Bur.  Soils,  Rept.  Field  Oper.  United  States  De- 
partment of  Agriculture.  Bureau  of  Soils.  Report  of  the  Field 
Operations  of  the  Bureau  of  Soils. 

U.  S.  Geol.  Surv.,  Ann.  Rept.  Annual  Report  of  the  United  States 
Geological   Survey. 

Bull.     Bulletin  of  the  United  States  Geological  Survey. 


lO  CONNECTICUT    GEOL,    AND    NAT,    HIST.    SURVEY. 

■  Geol.  Atlas  U.  S.  Geologic  Atlas  of  the  United  States  Geologi- 
cal Survey. 

— •  —  Min.  Res.  U.  S.     Mineral  Resources  of  the  United  States. 

Mon.     Monograph  of  the  United  States  Geological  Survey. 

Prof.  Paper.     Professional  Paper  of  the  United  States  Geological 

Survey. 

■  Water-Supp.  and  Irr.  Paper.    Water-Supply  and  Irrigation  Paper. 

U.  S.  Nat.  Mus.,  Proc.  Proceedings  of  the  United  States  National 
Museum. 


BIBLIOGRAPHY. 


I.     Agassiz,  J.  L.  R. 

On  the  age  of  the  Connecticut  valley  sandstones. 

Boston  Soc.  Nat.  Hist.,  Proc,  iii,  336,  337,  1850. 

Exception  taken  to  Dr.  Jackson's  statement  that  the  Connecticut 
sandstones  are  of  Silurian  age.  Evidence  of  fossil  fishes  places  the 
formation  much  later  in  geological  time. 

-2.     Agassiz,  J.  L.  R. 

On  Marcou's  "  Geology  of  North  America." 

Am.   Jour.   Sci.,    (2)    xxvii,   134-137,   1859. 

Defense  of  Marcou's  good  intentions  and  of  some  of  his  statements. 

3.  Akerly,  S. 

Geology  of  the  Hudson  river  and  vicinity.  69  pp.,  i  pi., 
New  York,  1820. 

Questions  Old  Red  Sandstone  age  of  Connecticut  river  sandstone. 

4.  Barbour,  E.  H. 

The  ancient  inhabitants  of  the   Connecticut  valley. 
Connecticut  Almanac,  37-58,  46  figs.,  1889. 

A  popular  account  of  the  tracks  and  other  impressions  occurring  in 
the  sandstone  of  Connecticut  and  Massachusetts. 

j.     Benjamin,  H.  W. 

Scenes  in  and  around  Granby. 
Connecticut  Quart.,  i,  139,  140,  1895. 
Describes   old  copper  mine  and  Newgate  prison. 

6.  Blake,  W.  P. 

Review  of  a  portion  of  the  geological  map  of  the  United 
States  and  British  provinces  by  Jules   Marcou. 
Am.  Jour.  Sci.,  (2)  xxii,  383-388,  1856. 

Enumeration    and    correction    of   numerous    errors    made    by    Marcou 
•  in  the  above  work. 

7.  Blake,  W.  P. 

Glacial  phenomena  of  Mill  Rock  near  New  Haven. 

Science,  i,  146,  147,  1883. 

Rock  marked  by  steep  south  slope,  gentle  north  slope;  by  rounding, 
grooving,   polishing. 


12  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

8.  Bowman,  H.  L. 

On  an  occurrence  of  minerals  at  Haddam  Neck,  Con- 
necticut, U.   S.  A. 

Miri.  Mag.  Jour.  Min.  Soc.  London,  xiii,  97-121,  4  figs., 
I   pi.,   1902. 

Review:  U.  S.  Geol.  Surv.,  Min.  Res.  U.  S.  841,  842,  1902. 

Deposit  is  in  vein  of  very  coarse  granite.  The  tourmalines  and 
associated  minerals  occur  in  pockets  lined  with  crystallized  quartz  and 
feldspar,  and  sometimes  beryl.  The  following  minerals  are  described 
mineralogically,  chemically,  crystallographically,  also  in  regard  to  their 
optical  properties:  —  green  and  pink  tourmaline,  albite,  microcline, 
green  and  pink  apatite,  brown  fluor,  beryl,  quartz,  cookeite,  lilac 
lepidolite,  greenish  white  muscovite,  and  a  peculiar  pink  fibrous  variety 
of  the  same  mineral.  Other  minerals: — green  fluor,  microlite,  colum- 
bite. 

9.  Brace,  J.  P. 

Observations  of  the  minerals  connected  with  the  gneiss 
range  of  Litchfield  county,   Connecticut. 
Am.  Jour.  Sci.,  (i)  i,  351-355,  i8i9- 

Location  of  the  gneiss  formation  and  its  relation  to  the  limestone,  per- 
phyritic  granite  or  gneiss,  and  mica  slate.  Brief  mention  of  minerals 
found  in  the  region;  carbonate  of  lime  over  the  whole  region;  cyanite  or 
sappar,  especially  at  Harwinton  and  Litchfield;  staurotide;  quartz; 
petrosilex,  common  in  Litchfield  and  Goshen;  common  opal,  in  Litch- 
field; rarely  mica;  schorl;  feldspar;  beryl;  garnets;  epidote,  in  Washing- 
ton and  Litchfield;  tremolite,  in  Litchfield,  Bethlehem,  and  Canaan ;^ 
common  asbestos  in  Washington  and  New  Milford;  augite,  in  Litch- 
field; hornblende,  actinolite,  steatite,  chlorite,  and  porcelain  clay,  in 
Litchfield;  graphite,  in  Cornwall;  ores  not  common;  red  oxide  of 
titanium,  sparingly  in  Litchfield. 

10.  Brongniart,  A. 

Miscellaneous  observations  relating  to  geologj-,  min- 
eralogy, and  some  connected  topics. 

Am.  Jour.   Sci.,   (i)   iii,  216-221,  222-226,   1821. 

Mentions  the  serpentine  of  New  Haven;  notices  the  strong  re- 
semblance of  the  bituminous  formation  of  Westfield,  near  Middletown,^ 
to  that  of  the  bituminous  marl  slates  of  the  copper  mines  in  the  coun- 
ties of  Mansfield  and  Hesse  in  Germany;  fish  impressions  in  each  are 
similar. 

11.  Brush,  G.  J.,  and  Dana,  E.  S. 

On  a  new  and  remarkable  mineral  locality  at  Branch- 
ville  in  Fairfield  county,  Connecticut;  with  a  description 
of  several  new  species  occurring  there. 

Am.  Jour.  Sci.,  (3)  xvi,  33-46,  114-123,  1878;  xvii,  359- 
368,  1879;  xviii,  45-50,  1879;  XX,  257-284,  1880:  xxix,  201- 
216,  1890. 

Description  of  the  physical  characteristics,  crystalline  form,  optical 
properties,    chemical    composition,    and    pyrognostics    of    various    minerals. 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  I3 

obtained  from  a  single  vein  of  albitic  granite  at  Branchville.  The  fol- 
lowing is  a  list  of  the  minerals  found:  Albite,  quartz,  muscovite,  micro- 
cline,  damourite,  spodumene  (and  its  alteration  products),  cymatolite, 
apatite,  microlite,  columbite,  garnet,  tourmaline,  staurolite,  eosphorite, 
dickinsonite,  triploidite,  rhodochrosite,  reddingite,  amblygonite  (hebron- 
ite),  vivianite,  lithiophilite,  uraninite,  fairfieldite,  fillowite,  chabazite, 
killinite,  natrophilite,  hureaulite. 

12.  Burr,  H.  T. 

Physical  geography  of  the   Connecticut  lowland. 
Connecticut  Sch.  Doc,  No.  251,  1-17,  8  figs.,   1904. 

The  Triassic  area  of  Connecticut  is  made  up  of  sandstones  deposited 
in  a  narrow  estuary,  lavas,  and  intrusive  rocks.  The  present  topography 
is  the  result  of  faulting  and  of  the  establishment  of  streams  on  an 
ancient  peneplain. 

13.  Chapin,  A.  B. 

Junction  of  trap  and  sandstone,  Wallingford,  Connecti- 
cut. 

Am.  Jour.  Sci.,  (i)  xxvii,  104-112,  8  figs.,  1835. 

Maps  of  seven  trap  dikes.  Detailed  description  of  branching  dike, 
contact  phenomena,  included  sandstone  fragments,  etc. 

(An  unusually  clear  and  complete  description  of  effects  of  contact 
metamorphism;    remarkable  for  this  early  date.  —  Ed.) 

14.  Chapin,  J.  H. 

The  Hanging  Hills. 

Meriden   Sci.  Assoc,   Trans.,   ii,  23-28,    1886. 

Brief  description  of  the  occurrence  of  the  trap  ridges  around  Meriden. 
Brief  review  of  two  theories  for  the  origin  of  the  trap  ridges:  i.  Each 
ridge  was  the  result  of  eruption  through  a  single  vent;  2.  (Davis)  The 
traps  were  contemporaneous  flows,  since  reduplicated  by  strike  faulting. 
The  author  inclines  more  to   No.   1. 

15.  Chapin,  J.  H. 

The  trap  ridges  at  Meriden. 

Meriden  Sci.  Assoc,  Trans.,  iii,  35-36,   1888. 

Brief  mention  of  "  ash  bed  "  in  anterior  sheet  of  Lamentation  Moun- 
tain. 

16.  Chapin,  J.  H. 

The  topographic  survey  of  Connecticut. 
Meriden  Sci.  Assoc,  Trans.,  iv,  51-57,  1890. 

A  description  of  the  method  used  in  making  the  topographic  map  of 
1893- 

17.  Cochrane,  H.  E. 

Rocks   and  minerals   ©f   Connecticut. 
Connecticut    Sch.    Doc,    No.    104,    1-26,    1895. 

List  of  minerals  and  rocks  found  occurring  in  the  towns  of  the 
state,  arranged  according  to  Sheijard's  .Minerals  and    Dana's   Mineralogy. 


14  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [BuIL 

18.  Cooper,  T. 

On  volcanoes  and  volcanic  substances,  with  a  particular 
reference  to  the  origin  of  the  rocks  of  the  floetz  trap- 
formation. 

Am.  Jour.   Sci.,   (1)   iv,   204-241,  242-243,   1822. 

Discusses  action  of  water  on  stones  and  earth  of  globe's  crust;  gives- 
large  number  of  facts  concerning  volcanoes  and  their  products;  proves- 
igneous  origin  of  floetz  trap  by  comparison  with  modern  lavas,  etc.,  as. 
disproving  the  Wernerian  theory  that  the  floetz  trap  was  of  aqueoiis 
origin.  In  this  discussion  the  trap  formations  of  Connecticut  are  used, 
as  examples. 

19.  Cornish,  R,  H. 

Glacial  scratches  in  vicinity  of  Norfolk,  Connecticut. 
Am.  Jour.   Sci.,    (3)   xxxix,  321,   1890. 

Brief  statement  of  direction  of  glacial  stride  in  the  vicinity  of  Nor- 
folk;  mean  direction     is  S.   33°   E. 

20.  Crosby,  W.  O. 

Notes  on  the  geology  of  the  sites  of  the  proposed  dams- 
in  the  valleys  of  the  Housatonic  and  Ten  Mile  rivers. 
Tech.   Quart.,  xiii,   pp.   120-127,   IQOO. 

The  Housatonic  river  formerly  flowed  through  the  Ten  Mile  river  and" 
Swamp  brook,  through  Pawling  into  the  Croton  drainage  system; 
its  present  course  through  the  crystallines  is  due  to  the  fact  that  it 
was  established  on  Cretaceous  strata  sloping  southeastward,  and  has 
since  maintained  its  direction  in  spite  of  later  erosion;  other  changes 
have  taken  place  in  the  river  system,  due  to  Glacial  deposits.  The  site 
of  the  proposed  dam  in  the  Housatonic  valley  is  about  one  mile  south 
of  Merwinsville,  and  of  the  dam  in  the  Ten  Mile  valley  about  one-half 
mile  above  Webatuck. 

21.  Dana,  E.  S. 

Trap   rocks   of  the   Connecticut   Valley. 

Am.  Jour.  Sci.,  (3)  viii,  390-392,  1874;  Am.  Assoc.  Adv.- 
Sci.,  Proc,  xxiii,  pt.  ii,  45-47,  1874.  Abstract:  Neues 
Jahrb.,  427,  1875. 

Microscopical  and  chemical  description  of  the  Connecticut  traps; 
closely  similar  to  trap  from  Nova  Scotia,  New  Jersey,  Pennsylvania,^ 
and  North  Carolina;  composed  of  pyroxene,  labradorite,  and  magnetite, 
with  chrysolite  and  apatite;  chlorite  is  present  as  alteration  product. 
Two  types:  anhydrous  (West  Rock,  etc.),  and  hydrous  (Saltonstall 
ridge). 

(This  paper  is  "  the  first  important  memoir  in  Petrography  published. 
in  this  country." — Ed.) 

22.  Dana,  E.  S. 

On  the  occurrence  of  garnet  with  the  trap  of  New 
Haven,  Connecticut. 

.\m.  Journal   Sci.,   (3)   xiv,   215-218,   1877. 

Description  of  garnets  found  in  the  trap  of  East  Rock  and  Mill' 
Rock.  Brief  description  of  the  associated  minerals, —  magnetite,  pyrox-- 
ene,  opalite,  and  calcite.     Chemical  analyses  and  drawings. 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  I5 

23.  Dana,  E.  S.,  and  Brush,  G.  J. 

On  a  new  and  remarkable  mineral  locality  at  Branch- 
ville  in  Fairfield  county,  Connecticut;  with  a  description; 
of  several  new  species  occurring  there. 

Am.  Jour.  Sci.,  (3)  xvi.,  33-46,  1 14-123,  1878;  xvii,  359- 
368,  1879;  xviii,  45-50,  1879;  XX,  257-284,  1880;  xxix,  201-216,. 
1890. 

See  Brush  and   Dana,   11. 

24.  Dana,  J.  D. 

Origin  of  the  grand  outline  features  of  the  earth. 
Am.  Jour.  Sci.,  (2)  iii,  381-398,  1847. 

Discussion  of  the  general  trends  of  coast  lines,  mountain  ranges,. 
and  groups  of  islands  of  the  globe,  including  peculiarities  of  fissures 
as  illustrated  by  Percival's  map  of  the  trap  ranges  ("  courses  of 
fissures  ")    of   Connecticut. 

25.  Dana,  J.  D. 

On  the  plan  of  development  in  the  geological  history 
of  North  America. 

Am.  Assoc.  Adv.  Sci.,  Proc,  x,  1-18,  1856;  .\m.  Jour.  Sci., 

(2)  xxii,  335-349,  map,  1856. 

Development  of  the  continent  of  North  America,  starting  with  a 
V-shaped  are^  around  Hudson  Bay,  by  the  action  of  two  systems  of 
forces,  a  southeast  and  southwest  one.  The  red  sandstones  of  Con- 
necticut indicate  the  water  line  in  the  Jurassic  period. 

26.  Dana,  J.  D. 

[Review  of]  "  Illustrations  of  Surface  Geology,"  hy 
E.  Hitchcock. 

Am.  Jour.   Sci.,   (2)  xxiv,  430-433,    i857- 

Summary  of  a  general  discussion  of  terraces.  Hitchcock  speaks  of 
a  "  terrace  epoch,"  when  the  terraces  of  the  Connecticut  river  were 
made  by  the  ocean,  as  the  result  of  a  general  submergence  and  ai 
gradual   re-elevation  of  the   continent. 

27.  Dana,  J.  D. 

[Review  of]  "  Geology  of  North  America,"  by  J.  Alarcou. 
Am.  Jour.  Sci.,  (2)  xxvi,  323-334,  1858. 

Exposure    and    criticism    of    numerous    incorrect    statements    made    by 
'  Marcou  in  the  above  work. 

28.  Dana,  J.  D. 

Reply  to  Prof.  Agassiz  on  Marcou's  "  Geology  of  North 
America." 

Am.  Jour.  Sci.,   (2)   xxvii,   137-140,   1859. 
Criticism  of  Marcou's  errors  and  unfairness. 


l6  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [BuM. 

29.  Dana,  J.  D. 

On  the  geology  of  the  New  Haven  rearion,  with  especial 
reference  to  the  origin  of  its  topograpiiic  features. 
Am.  Jour.  Sci.,  (2)  xlix,  275,  1870. 
Topographic  features  produced  by  glaciers  rather  than  by  irebergs. 

30.  Dana,  J.  D. 

Excursion  to  Hanging  Hills  of  Meriden. 

History  of  Wallingford,  by  C.  H.  S.  Davis,  53-56,  1870. 

The  scenery  and  geological  features  of  the  Meriden  region  are 
described.  The  Quinnipiac  and  the  Connecticut  rivers  owe  their 
altered  courses  to  the  eruption  of  trap;  the  smaller  streams  were  affected 
by  post-Tertiary  elevation.  Between  Berlin  and  Wallingford  are 
eight  fractures  from  which  liquid  rock  issued.  Only  a  small  amount  of 
rock  has  been  worn  by  glaciers  from  the  summits  of  the  Hanging  Hills. 

31.  Dana,  J.  D. 

On  the  Quaternary,  or  post-Tertiary,  of  the  New  Ha- 
ven region. 

Am.  Jour.   Sci.,    (3)   i,   1-5,   125,   126,    1871. 

The  drift  of  the  New  Haven  region  was  the  result  of  glacier  rather 
than  iceberg  action;  the  Connecticut  valley  glacier  was  but  the  inferior 
portion  of  the  great  continental  glacier. 

32.  Dana,  J.  D. 

[Review   of]    "  Historical   notes    of   the    earthquakes    of 
New  England,  1638-1869,"  by  W.  T.  Brigham. 
Am.  Jour.  Sci.,  (3)  i,  304,  305,  1871. 

227  earthquakes  recorded  since  1638.  Dana  calls  attention  to  the 
fact  that  volcanoes  and   earthquakes  are   not   necessarily   related. 

33.  Dana,  J.  D. 

On  the  Connecticut  river  valley  glacier,  and  other  ex- 
amples of  the  glacier  movement  along  the  valleys  of  New 
England. 

Am.  Jour.  Sci.,  (3)  ii,  233-243,  1871. 

Great  valley  depressions,  as  the  Connecticut  valley,  influenced  the 
direction  of  the  flow  of  the  continental  glacier;  in  such  valleys  the  ice 
movement  was  in  the  general  direction  of  the  valley. 

34.  Dana,  J.  D. 

Triassic  sandstone  of  the  Palisade  ranges. 

Am.  Jour.  Sci.,  (3)  ii,  459,  460,  1871. 

The  Connecticut  sandstone  contains  orthoclase,  and  the  New  Jersey 
sandstones  contain   albite. 

35.  Dana,  J.  D. 

Green  mountain  geology.     On  the  quartzite. 

Am.  Jour.  Sci.,  (3)  iii,  179-186,  250-256,  1872. 

Description  of  the  quartzite  of  Canaan,  Connecticut,  Poughquag, 
New  York,  etc.,  and  its  general  relation  to  the  Green  mountain 
quartzite,  the  crystalline  limestone,  and  metamorphic  schist;  at  Canaan 
the  quartzite  unconformably   underlies  the  limestone. 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  I7 

36.  Dana,  J.  D. 

The  character  of  trap  near  New  Haven. 
Am.  Jour.  Sci.,  (3)  iv,  22,7,  1872. 

Essential  identity  of  the  New  Haven  trap  and  Palisade  (New  Jersey) 
trap;   iron  in  them  is  magnetic. 

37.  Dana,  J.  D, 

On  the  quartzite,  limestone  and  associated  rocks  of  the 
vicinity  of  Great  Barrington,  Berkshire  county,  Massa- 
chusetts. 

Am.  Jour.  Sci.,  (3)  iv.,  z^'2'-ZT^,  450-4S3>  map,  1872; 
V,  47-53,  84-91,  1873;  vi,  257-278,  1873. 

Description  and  general  relations  of  the  mica  schist,  gneiss,  quartzite, 
and  limestone  of  Canaan,  South  Canaan,  and  Falls  Village;  mention  of 
the  chlorijtic  mica  slate  of  the  New  Haven  region,  and  the  Taconic 
slates  of  Salisbury  and  Mount  Washington. 

38.  Dana,  J.  D. 

On  the  geology  of  the  New  Haven  Region,  with  special 
reference  to  the  origin  of  some  of  its  topographic  fea- 
tures. 

Connecticut  Acad.  Arts   Sci.,  Trans.,  ii,  45-112,  map,   1873. 

Description  of  the  main  geological  features  of  the  region.  Geological 
events  previous  to  the  Glacial  period,  forming  of  sandstone  and  trap 
areas,  subsequent  elevation,  erosion,  etc.  The  Glacial  period  —  con- 
ditions and  results;  events  of  post-Glacial  time;  various  changes  in 
level  of  the  area;  structure  of  the  New  Haven  plain. 

39.  Dana,  J.  D. 

On  the  Glacial  and  Champlain  eras  in  New  England. 
Am.  Jour.  Sci.,  (3)  v,  198-21 1,  217-219,  1873. 

Summary  of  the  facts,  theories,  and  conclusions  concerning  the 
Glacial  history  of  New  England. 

40.  Dana,  J.  D. 

On  staurolite  crystals  and  Green  mountain  gneisses  of 
the  Silurian  age. 

'Am.  Assoc.  Adv.  Sci.,  Proc,  xxii,  pt.  ii,  25-27,  1873;  Am. 
Nat.,  vii,  658-670,  1S73;  Can.  Nat.  (new  ser.),  vii,  163,  1875. 

Mention  of  staurolite  crystals,  associated  with  garnet  and  their  oc- 
currence in  mica  schist  which  overlies  the  Stockbridge  limestone  at  Falls 
Village.  Facts  drawn  from  the  alternation  of  quartzite,  limestone,  gneiss 
or  mica  schist,  showing  that  all  old-looking  Green  mountain  gneisses 
are  not  pre-Silurian,  and  that  the  presence  of  staurolite  is  no  evidence 
of  a  pre-Silurian  age. 

41.  Dana,  J.  D. 

On  southern  New  England  during  the  melting  of  the 
great  glacier. 

Am.  Jour.  Sci.,   (3)  x,  168-183,  2S0-282,  353-357,  409-438, 
497-508,  1875;  xi,  178-180,  1876;  xii,  125-128,  1876. 
2 


=?- 


l8  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

Evidence  of  a  flood  from  the  melting  of  tlie  glacier.  Origin  of  the 
stratified  estuary  deposits  of  the  New  Haven  plain;  absence  of  marine 
life  from  these  deposits.  Discovery  of  reindeer  bones  in  the  clay  of 
the  Quinnipiac  valley,  between  New  Haven  and  North  Haven.  Dis- 
cussion of  the  depression  of  the  land  and  amount  of  subsequent  ele- 
vation, through  evidence  furnished  by  terraces,  estuary  deposits,  etc., 
in  the  river  valleys  of  southern  New  England,  especially  in  the  New 
Haven  region;  the  Connecticut  valley  before  the  glacial  flood,  when  it 
overflowed  its  course  in  several  places  (in  Connecticut,  at  Meriden). 
Damming  of  streams  by  drift  ice  during  the  melting  of  the  great 
glacier.  Discharge  of  the  flooded  Mill  river  into  the  Quinnipiac,  and 
the  effect,  as  registered  in  the  drift  deposits  of  the  New  Haven  plain. 

42.  Dana,  J.  D. 

On  the  damming  of  the  streams  by  drift  ice  during  the 
melting  of  the  great  glacier. 

Am.  Jour.  Sci.,  (3)  xi,  178-180,  1876. 

Discussion  of  former  ice  dams  at  the  narrows  of  several  Connecti- 
cut rivers;  evidenced  by  terraces.  The  Thames,  Connecticut,  Housa- 
tonic,  Westfield,  Farmington  rivers  are  considered. 

43.  Dana,  J.  D. 

On  the  relations  of  the  geology  of  Vermont  to  that  of 
Berkshire. 

Am.  Jour.  Sci.,  (3)  xiv,  37-48,  132-140,  202-207,  257-264, 
1877. 

The  geology  of  the  limestone  region  of  the  Green  mountains  (in- 
cluding northwestern  Connecticut) ;  stratigraphical  relations  of  the  lime- 
stones, quartzite,  and  schists,  and  the  abundant  occurrence  of  iron.  Con- 
clusions as  to  the  chronological,  lithological,  and  orographic  relations  of 
the  formations. 

44.  Dana,  J.  D. 

On  "  indurated  bitumen  "  in  cavities  in  the  trap  of  the 
Connecticut  Valley.  From  the  report  on  the  geology  of 
Connecticut,  by  Dr.  J.  G.  Percival. 

Am.  Jour.  Sci.,  (3)  xvi,  130-132,  1878. 

Brief  discussion  of  the  origin  of  the  "  indurated  bitumen  "  described 
by  Percival  as  occurring  in  the  amygdaloidal  trap  at  Farmington,  New 
Britain,  Southbury,  Rocky  Hill,  and  Hartford;  "bitumen"  was  dis- 
tilled from  the  bituminous  shales  and  limestones  of  the  Triassic.  (See 
Russell,  250.) 

45.  Dana,  J.  D. 

On  some  points  in  lithology. 

Am.  Jour.  Sci.,  (3)  xvi,  335-343,  431-440,  1878;  Can.  Nat., 
(new  ser.)  ix,  40-48,  80-91,  1878. 

Consideration  and  criticism  of  the  value  of  some  of  the  distinctive 
characters  which  are  generally  accepted  at  the  present  time,  in  defining 
certain  kinds  of  rocks:  i.  "Older"  and  "younger";  2.  Foliated  or 
not;  3.  Porphyritic  structure;  4.  Containing  quartz  or  not;  5. 
Containing  "  plagioclase  ";  6.  Rocks  consisting  of  a  triclinia  feldspar 
and    mica;      7.   Hornblendic    or    augitic;      8.   Massive    or    schistose;      9. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  I9 

Metamorphic  or  eruptive.  Many  illustrations  from  Connecticut  locali- 
ties, including  labradiorite,  diorite  schist,  and  porphyritic  granite,  New 
Haven;     granite.    Stony   Creek;   limestone,    Canaan. 

46.  Dana,  J.  D. 

[Review  of]  "  On  the  physical  history  of  the  Triassic 
formation  in  New  Jersey  and  the  Connecticut  valley,"  by 
I.  C.  Russell. 

Am.  Jour.  Sci.,  (3)  xvii,  328-330,  1879. 

Objection  to  Russell's  statement  that  the  Connecticut  and  New  Jersey 
Triassic  areas  are  the  opposite  parts  of  a  once  continuous  anticline 
with  a  thickness  of  sandstone  of  25,000  feet.  (See  Russell,  249,  251, 
268.) 

47.  Dcma,  J.  D. 

On  the  Hudson  river  age  of  the  Taconic  schists,  and  on 
the  dependent  relations  of  the  Dutchess  county  and  west- 
ern Connecticut  limestone  belts. 

Am.  Jour.  Sci.,  (3)  xvii,  375-388,  map,  1879. 

The  Taconic  schists  are  of  the  age  of  the  Hudson  river  group;  the 
limestone  belts  of  western  Connecticut  and  eastern  New  York  are 
but  outcropping  bands  of  the  Lower  Silurian  limestone  formation, 
brought  to  the  surface  by  a  series  of  flexures. 

48.  Dana,  J.  D. 

Note  on  the  age  of  the  Green  mountains. 
Am.  Jour  Sci.,  (3)  xix,  191-200,  1880. 

Evidence  for  embracing  the  whole  region  between  the  Connecticut 
and  the  Hudson  (and  to  an  unascertained  distance  beyond)  withi«i  the 
limits  of  a  Green  mountain  synclinorium  of  Lower  Silurian  age. 

49.  Dana,  J.  D. 

On  the  geological  relations  of  the  limestone  belts  of 
Westchester  county,  New  York. 

Am.  Jour.  Sci.,  (3)  xx,  21-32,  194-220,  359-375,  450- 
456,  3  pis.,  1880;  xxi,  425-443,  I  Pl-,  1881;  xxii,  103-119,  313- 
315,  327-335,  1881. 

Description  and  discussion  of  the  general  geological  relations  of  the 
limestone,  schist,  and  gneiss  of  New  York  and  western  Connecticut,  to 
prove  that  these  limestones  and  conformably  associated  metamorphic 
rocks  are  of  Lower  Silurian  age. 

50.  Dana,  J.  D. 

Dolerite  (trap)  of  the  Triassic-Jurassic  area  of  eastern. 
North  America. 

Am.  Jour.  Sci.,   (3)  xxii,  230-233,  1881. 

Criticism  of  Dr.  Hawes's  method  of  dolerite  analysis  by  specific- 
gravity  mixture.  The  recognition  of  anorthite  and  albite  as  con- 
stituents of  West  Rock  trap  is  not  warranted  by  the  facts.  (See- 
Hawes,  128,  129,   130.) 


20  CONNECTICUT    GEOL.    AND    NAT.    HIST,    SURVEY.        [Bull. 

51.  Dana,  J.  D. 

On  the  relation  of  the  so-called  kames  of  the  Connec- 
ticut river  valley  to  the  terrace  formation. 

Am.  Jour.  Sci.,  (3)  xxii,  451-468,  1881. 

Criticism  of  Upliam's  theory  of  kames.  Concludes  that  the  so-called 
"  kames  "  are  really  part  of  the  terrace  formation.      (See  Upham,  283.) 

52.  Dana,  J.  D. 

The  flood  of  the  Connecticut  river  valley  from  the  melt- 
ing of  the  Quaternary  glacier. 

Am.  Jour.  Sci.,  (3)  xxiii,  87-97,  179-202,  360-373,  i  pi, 
1882;  xxiv,  98-104,  map,  1882. 

Abridged:   Connecticut  Almanac,  34-52,  map,   1888. 

Discussion  of  the  general  condition  of  the  Connecticut  and  its 
tributaries  during  the  progress  of  the  flood;  the  origin  of  the  channel- 
way  of  the  river;  the  question  as  to  which  is  the  normal  upper  terrace 
in  any  part  of  the  valley;  dimensions,  velocity,  and  discharge  of  the 
flooded  river;  the  bearing  of  the  facts  on  the  retreat  of  the  glacier; 
the  question  as  to  the  elevation  of  the  land. 

53.  Dana,  J.  D. 

Geological  age  of  the  Taconic  system. 

Geol.  Soc.  London  Quart.  Jour.,  xxxviii,  397-408,  map, 
1882.  (Read  April  5,  1882.)  Abstract:  Phil.  Mag.,  xiii, 
373-374,  1882.  Abstract  by  author:  Am.  Jour.  Sci.,  (3) 
xxiv,  291-293,  1882. 

All  observers  describe  the  schists  and  limestones  of  the  Taconic  area 
as  conformable.  They  belong  to  one  system,  and  have  a  high  eastward 
dip.  The  limestone  and  schist  are  Lower  Silurian,  and  the  schist  is 
the  younger.     Chief  part  of  schists  is  of  Hudson  river  age. 

54.  Dana,  J.  D. 

Evidence  from  southern  New  England  against  the  ice- 
berg theory  of  drift. 

Am.  Assoc.  Adv.  Sci.,  Proc,  xxxii,  195-198,  1883;  Science, 
ii,  390-392,  1883. 

Evidence:  From — i.  The  scratches  and  groovings  over  the  rocks; 
2.  The  transported  bowlders  and  other  materials;  3.  The  facts  as  to 
the  relative  level  of  land  and  sea  (maximum  difference  of  35  feet  be- 
tween then  and  now),  showing  that  the  iceberg  theory  of  drift  is  un- 
satisfactory for  southern  New  England. 

.55.     Dana,  J.  D. 

[Review  of]    "  Annual   report  of  the  state   geologist  of 
New  Jersey  for  1882,"  by  G.  H.  Cook. 
Am.  Jour.  Sci.,  (3)  xxv,  383-386,  1883. 

Objection  to  Cook's  hypothesis  that  "  the  various  areas  of  the  red 
sandstone  formation  east  of  the  Appalachians,  from  Massachusetts  to 
South  Carolina,  were  once  in  some  way  connected,  and  perhaps  those 
farther  northeast  in  the  British  provinces."  Brief  statement  of  the 
origin  of  the  Jura-Trias  of  eastern  North  America. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  21 

56.  Dana,  J.  D. 

.  On  the  western  discharge  of  the  flooded  Connecticut, 
or  that  through  the  Farmington  valley  to  New  Haven 
Bay. 

Am.  Jour.  Sci.,  (3)  xxv,  440-448,  maps,  1883.  Abridged: 
Connecticut  Almanac,  34-52,  map,  1888. 

Arguments  showing  that  the  waters  of  the  flooded  Connecticut,  com- 
ing through  the  Farmington  valley,  reached  New  Haven  bay  through 
the  Mill  valley  rather  than  the   Quinnipiac. 

57.  Dana,  J.  D.' 

[Review  of]  "  On  the  relations  of  the  Triassic  traps  and 
sandstones  of  the  eastern  United  States,"  by  W.  M.  Davis. 
Am.  Jour  Sci.,  (3)  xxv,  474-475,  1883. 

Criticism  of  Davis's  view  that  some  of  the  traps  are  intrusive  and 
some  overflow;  exception  taken  to  the  "  overflow  theory."  (See  Davis, 
82.) 

58.  Dana,  J.  D. 

Phenomena  of  the  Glacial  and  Champlain  periods  about 
the  mouth  of  the  Connecticut  valley  —  that  is,  in  the  New 
Haven  region. 

Am.  Jour.  Sci.,  (3)  xxvi,  341-361,  map,  1883;  xxvii,  113- 
130,  maps  (pis.  i,  ii),  1883. 

Description  and  discussion  of  the  glacial  phenomena  in  the  New 
Haven  region,  including  the  sand  plain  and  kettle-holes.  There  were 
two  simultaneous  movements  of  the  glacier  ice,  one  southwest,  the 
other  southeast. 

59.  Dana,  J.  D. 

On  the  southward  ending  of  a  great  synclinal  in  th«  Ta- 
conic  range. 

Abstract :  British  Assoc.  Adv.  Sci.,  Rept.  54th  meeting, 
729,  730,  1884. 

The  Taconic  range  is  probably  of  the  age  of  the  Hudson  river  group 
or  Llandeilo  flags;  a  southern  portion  in  southwestern  Massachusetts 
and  its  continuation  into  Salisbury,  Connecticut,  is  a  broad  tray-shaped 
synclinal;  the  area  south  is  limestone,  which  comes  out  from  beneath  the 
dwindled,  flattened-out,  and  worn-off  mountain  synclinal.  (See  Dana, 
61.) 

60.  Dana,  J.  D. 

[Review   of]    "  Preliminary  paper   on   the  terminal   mo- 
raine of  the  second  glacial  epoch,"  by  T.  C.  Chamberlin. 
Am.  Jour.  Sci.,  (3)  xxviii,  228-231,  1884. 

Review  of  Chamberlin's  paper.  Discussion  of  the  theory  as  ap- 
plied to  the  Connecticut  valley,  vihere  no  facts  have  been  observed 
which    indicate    a    second    glacial    epoch. 


22  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.       [Bull. 

6i.     Dana,  J.  D. 

On  the  southward  ending  of  a  great  syncHnal  in  the 
Taconic  range. 

Am.  Jour.  Sci.   (3)  xxviii,  268-276,  map,  1884. 

Discussion  of  the  geological  relations  of  limestene  and  schist  of  the 
Mount  Washington  portion  of  the  Taconic  range,  which  extends  into 
northwestern    Connecticut.      (See    Dana,    59.) 

62.  Dana,  J.  D. 

Note  on  the  origin  of  bedding  in  so-called  metamorphic 
rocks. 

Am.  Jour.  Sci.,  (3)  xxviii,  393-396,  1884. 

Discussion  to  prove  that  gneiss,  schist,  quartzite,  etc.,  are  parts  of  a 
stratified  series.  The  production  of  schistose  bedding  by  pressure  has 
a  very  limited  application;  field  evidence  supporting  this  view  at  Stony 
Creek,  Derby,   Lime   Rock,   Canaan. 

63.  Dana,  J.  D. 

On  the  decay  of  quartzite,  and  the  formation  of  sand, 
kaolin,  and  crystallized  quartz. 

Am.  Jour.  Sci.,  (3)  xxviii,  448-452,  1884. 

Discussion  of  the  formation  of  sand,  kaolin,  and  crystallized  quartz 
from  feldspathic  quartzite;  mentions  kaolin  deposits  of  Sharon  and 
Canaan. 

64.  Dana,  J.  D. 

The  till  ridge  of  New  Haven,  called  Round  hill. 

Am.  Jour.  Sci.,  (3)  xxix,  66-67,  1885. 

Brief  consideration  of  Davis's  criticism  as  to  origin  of  this  hill,  as 
described  by  Dana  in  a  previous  article.  Round  hill  deposited  by 
waters  descending  through  crevice  in  ice;  objection  by  Davis  to  this 
method  of  origin,  on  the  ground  of  absence  of  stratification,  not  well 
taken.      (See  Dana,   58;   Davis,  81.) 

65.  Dana,  J.  D. 

On  the  Taconic  rocks  and  stratigraphy,  with  a  geologi- 
cal map  of  the  Taconic  region. 

Am.  Jour.  Sci.,  (3)  xxix,  205-222,  437-443.  niap  (pi.  ii), 
1885. 

Presentation  of  facts  bearing  on  the  constitution,  stratigraphical 
relations,  and  distribution  of  Taconic  rocks.  Limestone  is  single  form- 
ation overlain  by  schist  and  quartzite  and  underlain  by  quartzite  and 
mica  schist.  Within  the  Taconic  region  metamorphism  increases  from 
north   to  south  and  from   west  to  east. 

66.  Dana,  J.  D. 

On  displacement  through  intrusion. 
Am.  Jour.  Sci.,   (3)  xxx,  ZT\-y7(i,  1885. 

Description  of  the  wedging  action  of  intruding  material,  as  shown 
in  specimens  from  Canaan  and  Lenox. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  23 

67.  Dana,  J.  D. 

[Review  of]  "  Gradual  variation  in  intensity  of  meta- 
morphism,"  by  C.  S.  Middlemiss. 

Am.  Jour.  Sci.,  (3)  xxxv,  82-83,  1888. 

Abstract  of  Middlemiss's  statements  in  regard  to  the  metamorphic 
phenomena  of  India,  and  brief  comparison  with  similar  phenomena  in 
New  England. 

68.  Dana,  J.  D. 

[Review  of]  "  Subaerial  decay  of  rocks  and  origin  of  the 
red  color  of  certain  formations,"  by  I.  C.  Russell. 

Am.  Jour  Sci.,   (3)   xxxix,  317-319,   1890. 

In  contrast  with  Russell's  views  Dana  believes  that  the  absence 
of  red  earth  in  the  crystallines  is  due  to  the  character  of  the  o.xidation, 
and  that  the  red  color  of  the  sandstones  is  due  to  changes  subsequent 
to  deposition.     (See  Russell,  252.) 

69.  Dana,  J.  D. 

Archaean  limestone  and  other  rocks  in  Norfolk,  Connec- 
ticut. 

Am.  Jour.  Sci.,  (3)  xxxix,  321,  1890. 

Brief  mention  of  a  small  area  of  limestone  associated  with  hard 
gneiss,  granite,  and  some  hornblendic  rocks,  at  Norfolk;  limestone  con- 
sidered as  Archaean.  Brief  mention  of  magnetite  vein  two  and  one- 
half  miles  east  of  Norfolk,  that  had  been  opened  and  worked  for  a 
time. 

70.  Dana,  J.  D. 

Archaean  axes  of  eastern  North  America. 

Am.  Jour.  Sci.,  (3)  xxxix,  378-383,  1890. 

Division  of  eastern  North  America  into  ranges  and  troughs  which 
were  areas,  for  the  most  part,  of  independent  geological  work.  Men- 
tions a  Connecticut  valley  trough. 

71.  Dana,  J.  D. 

On  the  four  Rocks  of  the  New  Haven  region.  120  pp., 
7  pis.,  maps  (pis.  i-iii,  vi).  New  Haven,  1891. 

Detailed  description  of  East  Rock,  West  Rock,  Pine  Rock,  and  Mill 
Rock.  They  are  intrusions  of  dolerite  into  upturned  sandstone.  East 
Rock  and  West  Rock  are  of  laccolithic  origin.  Pine  Rock  and  Mill 
Rock  are  trap  dikes.  "  Mount  Carmel  appears  to  be  a  combination  of 
dikes."  Pp.  41-120  describe  the  geology  along  certain  walks  and 
drives  about  the  New  Haven  region,  including  Meriden,  Maltby  Park, 
Woodbridge,  the  shore  line  from  Savin  Rock  eastward,  including  ex- 
cursions to  Branford,  Stony  Creek,  and  the  Thimble  Islands,  Saltonstall 
ridge,   and   the   North   Haven   clay   deposits. 

72.  Dana,  J.  D. 

Some  of  the  features  of  non-volcanic  igneous  ejection, 
as  illustrated  in  the  four  "  rocks  "  of  the  New  Haven  re- 
gion—  West  Rock,  Pine  Rock,  Mill  Rock,  East  Rock. 

Am.  Jour.  Sci.,  (3)  xlii,  79-110,  6  pis.,  maps  (pis.  ii,  iii, 
vi),  1891. 


24  CONNECTICUT    GEOL,    AND    NAT.    HIST.    SURVEY.        [Bull. 

Detailed  description,  with  maps,  sketches,  and  photographs,  of  the 
four  "rocks"  of  New  Haven.  Pine  Rock  and  Mill  Rock  are  dikes; 
East  Rock  and  West  Rock  are  intrusions  of  a  laccolithic  character.  (See 
Dana,  71.) 

73.  Dana,  J.  D, 

On  Percival's  map  of  the  trap  belts  of  central  Connec- 
ticut, with  observations  on  the  upturning,  or  mountain- 
making  disturbance,  of  the  formation. 

Am.  Jour.  Sci.,  (3)  xlii,  439-447,  map  (pi.  xvi),  1891. 

Citation  of  the  facts  favoring  ejection  of  trap  after  the  great 
mountain-making  event  of  the  valley;  discussion  of  the  character  of  this 
mountain-making    disturbance. 

74.  Dana,  J.  D. 

Additional  observations  on  the  Jura-Trias  traps  of  the 
New    Haven    region. 

Am.  Jour.   Sci.,   (3)   xliv,   165-169,   1892. 

Description  of  a  s-inch  trap  dike  at  West  Rock,  branching  from  the 
main  rock  mass. 

75.  Dana,  J.  D. 

Manual  of  geology',  4th  ed.  1,036  pp.,  1,577  figs,  and  maps. 
New  York,  American  Book  Co.,  1895. 

Among  the  subjects  dealing  with  Connecticut  are  Branchville  mine, 
331;  Thimble  islands,  949;  copper  mines,  745;  iron  mines,  127;  marble 
deposits,  524,  530,  531;  Triassic,  iii,  740-742,  751-755,  799-801;  glacial 
deposits,  194,  195,  443,  956,  970,  971;  structure  and  age  of  Stockbridge 
limestone  and  related  rocks,  309,  527-532;  Taconic  system,  495-496;  Tri- 
assic strata  were  deposited  in  a  valley  and  the  traps  are  intrusive,  798- 
808;   fossils   750-756. 

(Dana's  Manual  is  particularly  rich  in  references  to  Connecticut 
geology. —  Ed.) 

76.  Dana,  James  Dwight.     (1813-1895.) 

Biograph3^ 

E.  S.  Dana:    Am.  Jour.  Sci.,  (3)  xlix,  1-28,  1895. 
Beecher:  Atn.   GeoL,  xvii,   1-16,   1896. 
Williams:  Jour.  GeoL,  iii,  601,  1895. 
Le  Conte :   Geol.   Soc.   America,   Bull.,  vii,  461-479,   1896. 
Gilman:   The  life  of  James   Dwight  Dana,   Harper  and 
Brothers,  New  York,  1899. 

77.  Davis,  C.  H.  S. 

The    Catopterus   gracilis. 

IMeriden  Sci.  Assoc,  Trans.,  ii,  19-22,  1886. 

Description  of  a  fossil  fish,  Catopterus  gracilis,  found  in  the  bi- 
tuminous shales  at  Little  Falls,  about  two  miles  north  of  Durham 
Center. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  25 

78.  Davis,  W.  M. 

Brief  notice  of  observations  on  the  Triassic  trap  rocks 
of  Massachusetts,  Connecticut,  and  New  Jersey. 

Am.  Jour.  Sci.,  (3)  xxiv,  345-349,  1882. 

Occurrence  of  traps  in  three  distinct  conditions:  i.  Dikes;  2.  In- 
truded sheets;    3.  Overflow  sheets.     Discussion  of  origin,  etc. 

79.  Davis,  W.  M. 

The  structural  value  of  the  trap  ridge.s  of  the  Connecti- 
cut valley. 

Boston  Soc.  Nat.  Hist.,  Proc,  xxii,  1 16-124,  1882. 

Discussion  of  the  Triassic  problem,  particularly  in  the  Connecticut 
valley.  Connecticut  strip  of  sandstone  not  greatly  reduced  from  its 
original  area;  its  dip  not  the  result  of  oblique  deposition,  but  of  post- 
Triassic  disturbance;  most  of  the  trap  ridges  are  edges  of  contempo- 
raneous overflows  of  lava,  so  may  be  considered  as  conformable  mem- 
bers of  the  sedimentary  series,  and  serve  as  horizons  to  locate  redupli- 
cation of  strata  by  (strike)  faulting;  the  curvature,  as  well  as  the  oc- 
casional reappearance  of  the  trap  ridges,  is  the  result  of  folding  and 
faulting.      (See  Davis,   98.) 

80.  Davis,  W.  M. 

Abstract  of  "  High  river  terraces  of  eastern  Connecti- 
cut," by  B.  F.  Koons. 

Science,  i,  19,  1883. 

Position  of  several  terraces  depends  on  ice-dams  that  existed  during 
the  decline  of  the  Glacial  period.     (See  Koons,   181.) 

81.  Davis,  W.  M. 

The  distribution  and  origin  of  drumlins. 
Am.  Jour.  Sci.,  (3)  xxviii,  407-416,  1SS4. 

The  place  of  drumlins  in  a  geographical  classification;  terminology; 
general  description;  distribution;  origin  —  similar  to  that  of  sand-bars  in 
a  river;  discusses  distribution  and  origin  of  some  Connecticut  drumlins. 
(See  Dana,  58,64.) 

82.  Davis,  W,  M. 

On  the  relations  of  the  Triassic  traps  and  sandstones  of 
the  eastern  United  States. 

Mus.  Comp.  Z06I.,  Bull.,  vii,  249-309,  1884.  Abstract: 
Neues  Jahrb.,  230-232,  1884;  Science  i,  430,  1883. 

Description  of  the  Triassic  formation  seen  at  various  places  in  New 
Jersey,  Massachusetts,  and  Connecticut  —  Beckley  Station,  Meriden, 
Wallingford,  New  Haven.  Brief  statement  of  former  views;  literature; 
discussion  of  the  general  relations  and  origin  of  the  trap  and  sand- 
stones; extrusive  nature  of  most  of  the  trap  proved.  (For  complete 
treatment  of  subject,  see  Davis,  98.) 

83.  Davis,  W.  M. 

The  structure  of  the  Triassic  formation  of  the  Connecti- 
cut valley. 


26  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.       [Bull. 

U.  S.  Geol.  Surv.,  7th  Ann.  Rept.,  for  1885-86,  455-490, 
I  pi,  1888.    Abstract:    Am.  Geol.,  iv,  112,  113,  1889. 

Discussion  of  the  conditions  of  accumulation  of  sandstones,  shales, 
limestones,  intrusive  and  extrusive  flows,  dikes.  Discussion  of  the 
structure  of  the  formation, —  general  attitude,  faults  and  their  sys- 
tematic arrangement,  low  folds.  Discussion  of  the  mechanical  origin 
of  the  formation.      (See   Davis,  98.) 

84.  Davis,  W.  M. 

The  structure  of  the  Triassic  formation  of  the  Connecti- 
cut valley. 

Am.  Jour.  Sci.,  (3)  xxxii,  342-352,  1886. 

Discussion  proving  that  the  disturbance  of  the  strata  took  place  after 
the  period  of  deposition;  was  not  caused  by  overflow  or  intrusion  of 
trap  sheets;  was  not  a  single  monoclinal  tilting.  The  whole  region  has 
been  cut  by  a  series  of  strike  faults.  Discussion  of  origin  of  crescentic 
ridges,  and  of  probable  character  of  the  disturbing  force.  (See  Davis, 
98.) 

85.  Davis,  W,  M. 

Results  of  a  study  on  the  mechanical  origin  of  the  Trias- 
sic monoclinal  in  the  Connecticut  valley. 

Boston  Soc.  Nat.  Hist.,  Proc,  xxxiii,  339-341,  1886. 

Explanation  of  the  Triassic  monoclinal  given  in  the  following  state- 
ment: "Whenever  unconformable  masses  are  deformed  together,  the 
structure  given  to  the  lesser,  relatively  superficial  mass  must  depend  in 
great  part  on  the  changes  in  the  surface  shape  of  the  greater,  deeper 
mass  below."  Schists  and  gneisses  have  slipped  on  each  other  because 
of  lateral  pressure.  Proof:  strike  of  surface  faults  corresponds  with 
the  strike   of  the  schist  beneath. 

86.  Davis,  W.  M. 

The  mechanical  origin  of  the  Triassic  monoclinal  in  the 
Connecticut  valley. 
Am.  Assoc.  Adv.  Sci.,  Proc,  xxxv,  pp.  224-227,  1887. 

Monoclinal  faulting  due  to  slipping  of  underlying  schists  and  gneisses 
along  their  vertical  cleavage  planes.     (See  Davis,  85,  98.) 

87.  Davis,  W.  M. 

The  ash  bed  at  Meriden  and  its  structural  relations. 
Meriden  Sci.  Assoc,  Trans.,  iii,  23-30,  1888. 

(See  Davis,  98.) 

88.  Davis,  W.  M. 

The  faults  in  the  Triassic  formation  near  Meriden. 
Mus.  Comp.  Z06I.,  Bull.,  xvi,  61-87,  5  pis.,  1889. 

(See   Davis,  98.) 

89.  Davis,  W.  M. 

Topographic  development  of  the  Triassic  formation  of 
the   Connecticut  valley. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  2/ 

Am.  Jour.  Sci.,  (3)  xxxvii,  423-434,  1889.  Abstract:  Pop. 
Sci.  Mon.,  xxvi,  573,  1889. 

Discusses  mechanism  of  monoclinal  faulting;  topographic  develop- 
ment of  the  Triassic  belt,  etc.      (See  Davis,  85,  86,  98.) 

go.     Davis,  W.  M. 

Remarks  on  structure  of  fillings  of  fissures  in  trap  at 
Meriden. 

Geol.  Soc.  America,  Bull,  i,  442,  1890. 

Brief  mention  of  the  fact  that  detrital  material  supplied  from  above 
takes  a  horizontal  stratification  as  it  settles  into  fissures  in  the  trap 
of  the  quarry  at  Meriden.      (See  Davis,   98.) 

gi,     Davis,  W.  M. 

Physical  geography  of  southern  New  England. 
Johns  Hopkins  Univ.  Circ,  x,  No.  87,  78,  79,  1891. 

Chief  variety  of  form  of  southern  New  England  is  found  in  the  val- 
leys etched  beneath  the  general  surface;  the  upland  is  a  peneplain; 
southern  New  England  a  region  of  ancient  deeply  buried  rocks, 
consisting  of  "  greatly  distorted  and  overturned  schists  and  bedded 
rocks."  "  The  present  altitude  of  the  highlands  is  the  result  of 
subsequent  massive  elevation;"  the  hills  that  lie  above  the  peneplain 
are  remnants  of  the  late  Cretaceous  surface,  and  the  valleys  of  post- 
Cretaceous  date;  the  effect  of  glaciation  and  the  action  of  currents 
and   waves   upon   the   shore   line   is   described.      (See   Davis,    96.) 

g2.     Davis,  W.  M. 

The  Triassic  sandstone  of  the  Connecticut  valley. 
Johns  Hopkins  Univ.  Circ,  x.  No.  87,  79,  1891. 

Four  stages  of  the  formation  are  pointed  out:  i.  Accumulation  of 
sandstone  and  shale  with  sheets  of  lava,  and  at  least  one  great  intrusive 
sheet;  2.  Post-Triassic  stage  of  tilting  and  faulting;  3.  Reduction  of 
the  elevated  mass  to  a  peneplain  during  Jurassic  and  Cretaceous  time; 
4.  In  Tertiary  time,  gentle  uplifting  and  tilting  to  the  south  or  south- 
east. After  this  period  the  streams  cut  the  valleys  down  nearly  to  a 
new  base-level.      (See   Davis,  96,   98.) 

gs.     Davis,  W.  M. 

The  Triassic  formation  of  Connecticut. 
Geol.  Soc.  America,  Bull.,  ii,  415-424,  1891. 

Discussion  of  the  structure  and  origin  of  the  Triassic  formation, 
particularly  of  the  area  around  Meriden;  Mount  Carmel  mentioned  as  a 
possible  vent  through  which  the  lava  of  the  trap  sheets  rose,  to  the 
surface.  (For  complete  discussion  of  Triassic  formation,  see  Davis, 
98.) 

.g4.     Davis,  W.  M. 

The  geological  dates  of  origin  of  certain  topographic 
forms  on  the  Atlantic  slope  of  the  United  States. 

Geol.  Soc.  America,  Bull.,  ii,  545-586,  1891.  Abstract: 
Am.  Geol.,  viii,  260,  1891. 

Classification  of  topographic  forms  according  to  age  or  degree  of 
development.       Description    of    the    topographic    forms    of    the    Atlantic 


28  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

slope,  including  the  resurrected  pre-Triassic  and  the  uplifted  Cretaceous 
peneplain  of  southern  New  England.  Also  the  Tertiary  excavation  in  the 
Cretaceous  peneplain. 

95.  Davis,  W.  M. 

The  lost  volcanoes  of  Connecticut. 

Pop.  Sci.  Mon.,  xl,  221-235,  1892. 

Mount  Carmel  may  be  the  volcanic  neck  or  the  remains  of  the 
plug  in  the  vent  through  which  the  volcanic  material  of  the  Connecticut 
valley  was  thrown  out,  particularly  the  ash  and  bombs  at  Lamentation 
Mountain. 

(The  evidence  that  Mount  Carmel  was  a  volcano  which  furnished  the 
Triassic  lavas  is  unsatisfactory. —  Ed.) 

96.  Davis,  W.  M. 

The  physical  geography  of  Southern  New  England. 
Nat.  Geog.  Mon.,  i,  269-304,  6  figs.     New  York,  Ameri- 
can   Book    Co.,    1895. 

The  subject  is  discussed  under  the  following  heads:  i.  Upland  of 
Southern  New  England, —  its  general  features,  origin,  peneplain, 
monadnocks;  2.  ^" alleys  in  the  upland, —  slanting  of  peneplain,  revival 
of  rivers,  depth  and  breadth  of  valleys,  Connecticut  valley  lowland,  lava 
ridges,  distribution  of  population;  3.  Glacial  invasion, —  forms  of 
drift,  geographical  consequences;  4.  Coast-line,  depression,  modification 
by   waves   and   currents. 

97.  Davis,  W.  M. 

The  quarries  in  the  lava  beds  at  Meriden,  Connecticut. 

Am.  Jour.  Sci.  (4)  i,  1-13,  3  figs.,  1896. 

Description  of  the  quarries  in  the  Triassic  formation  at  Meriden, 
showing  the  vesicular  upper  surface  of  one  lava  bed  under  the  dense 
basal  portion  of  a  later  flow,  and  a  number  of  fractures  dislocating  the 
double  flow.  Relation  o.f  these  features  to  the  geological  structure  of 
the  district.      (See  Davis,  98.) 

98.  Davis,  W.  M. 

The  Triassic  formation  of  Connecticut. 
U.  S.  Geol.  Surv.,  i8th  Ann.  Rept.,  pt.  ii,  9-192,  20  pis., 
52  figs.,  1898. 

Detailed  description  and  discussion  of  the  origin  and  formation  of 
the  Triassic  under  three  main  heads:  i.  Deposition, —  the  floor  of  the 
older  rocks;  Triassic  strata;  igneous  rocks,  intrusive  and  extrusive  (an- 
terior, main,  and  posterior  sheets);  vulcanism;  isostasy;  relation  of 
deposition  and  deformation.  2.  Deformation, —  changes  from  original 
attitude,  warps,  faults.  3.  Denudation, —  general  principles  of  land 
sculpture;  cycles  of  denudation;  initial  form  of  monoclinal  faulting:  Cre- 
taceous peneplain;  Tertiary  dissection  of  the  uplifted  peneplain;  Glacial 
modifications  of  form  and  drainage;  review  of  origin  of  drainage. 
Previous  studies  of  the  Connecticut  Triassic.  The  extrusive  nature  of 
most  of  the  trap  formations  is  proved.  The  present  arrangement  of 
ridges  is  shown  to  be  due  mainly  to  a  uniform  system  of  faulting;  and 
these  fault  lines  are  preserved  in  the  topography  of  the  region. 

(This  is  the  most  important  single  contribution  to  the  geology  of 
central    Connecticut,    and    in    it    is    included    practically    all    the    matter 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  29 

covered   in   the   other   papers    by    Davis,    and    those   by    Griswold   and   by 
Whittle.— £rf.) 

99.     Davis,  W.  M.,  and  Griswold,  L.  S. 

Eastern  boundary  of  the   Connecticut  Triassic. 

Geol.  Soc.  America,  Bull.,  v,  515-530,  1894.  Abstract: 
Am.  Geo!.,  xiii,  145,  146,  1894;  Am.  Jour.  Sci ,  (3)  xlvii,  136, 
137,  1894. 

General  geological  history  of  the  region  given.  Special  discussion  of 
faults.  Evidence  showing  that  the  entire  eastern  boundary  of  the 
Triassic  formation  in  Connecticut  is  defined  by  fault  lines.  (See  Davis, 
98.) 

99a.     Davis,  W.  M.,  and  Loper,  S.  W. 

Two  belts  of  fossiliferous  black  shale  in  the  Triassic 
formation  of  Connecticut. 

Geol.  Soc.  America,  Bull.,  ii.  415-430,  1891. 

General  stratigraphy  of  the  formation.  Special  account  of  fossils 
of  the  two  strata  of  black  shale.     (See  Loper,  189.) 

100.  Davis,  W.  M.,  and  Whittle,  C.  L. 

The  intrusive  and  extrusive  Triassic  trap  sheets  of  the 
Connecticut  valley. 

Mus.  Comp.  Zool.,  Bull,  xvi,  99-138,  i  pL,  1889. 

Statement  of  the  means  of  distinguishing  intrusions  and  extrusions. 
General  features  and  discussions  of  intrusive  and  extrusive  sheets  in 
the  following  localities  of  Connecticut:  East  and  West  Rock,  New 
Haven;  Gaylord's  mountain,  Roaring  brook,  Cheshire;  anterior  at  north 
end  of  Totoket;  J4  mile  southeast  of  East  Meriden;  north  end  of 
Higby  mountain;  south  and  west  of  Chauncy  peak;  anterior  of 
Lamentation  mountain;  anterior  of  Cat  Hole  peaks;  anterior  of  Notch 
mountain;  anterior  of  Shuttle  Meadow  mountain;  anterior  of  Farming- 
ton  mountain:  Farmington  river  gap;  Saltonstall  mountain;  Totoket 
mountain,  inside  south  and  north  brooks;  Higby  mountain;  Lamentation 
mountain;  Meriden  city  quarry;  ist  and  2d  ridges  posterior  to  Salton- 
stall mountain;  ridge  near  Middlefield  station;  falls  of  the  Aramamit 
river;  Highland  lake;  Hartford  avenue  and  North  Stanley  street,  New 
Britain;  near  Trinity  College,  Hartford.      (See  Davis,  98.) 

101.  Deane,  J. 

Ichnographs  from  the  sandstone  of  the  Connecticut  val- 
ley.    61  pp.,  46  pis.       Boston,  Little,  Brown  and  Co.,  1861, 

The  incomplete  papers  of  Dr.,  Deane,  compiled  and  edited  by  T.  T. 
Bouve,  H.  I.  Bowditch,  A.  A.  Gould,  and  others. 

(Doubt  is  cast  on  the  bird  origin  of  the  footprints,  and  Deane's 
part  in  the  discovery  of  the  first  specimens  is  magnified. —  Ed.) 

102.  Des  Cloiseaux,  A.  L.  O. 

Optical  examination  of  the  red  feldspar  of  the  granite 
from  Lyme,  Connecticut. 

Am.  Jour.  Sci.,  (3)  xx,  335-336,  1880. 

Brief  description  of  the  microcline  from  the  coarse  granite  of  the 
MacCurdy  quarry  at  Lyme. 


30  CONNECTICUT    GEOL,    AND    NAT.    HIST.    SURVEY.        [Bull. 

103.  Dewey,  C. 

A  sketch  of  geology  and  mineralogy  of  the  western  part 
of  Massachusetts  and  a  small  part  of  the  adjoining  states. 

Am.  Jour.  Sci.,  (i)  viii,  1-60,  240-244,  map,  1824. 

Description  of  the  occurrence,  general  relations,  and  character  of 
the  mica  slate,  granular  limestone  and  quartz  rock  found  in  the  north- 
western part  of  Connecticut.  Mentions  the  following  minerals:  garnet, 
staurotide,  schorl,  cyanite,  tremolite,  nephrite,  calcareous  tufa,  clay, 
some  zinc  mineral,  also  iron  ores  from   Salisbury. 

104.  Dobson,  P. 

Remarks  on  bowlders. 

Am.  Jour.  Sci.  (i),  x,  217,  218,  1826. 

Description  of  sandstone  bowlders  worn  smooth  on  one  side  and 
exhibiting  scratches  and  furrows  on  the  abraded  part,  found  below  as 
well  as  at  the  surface.  "  Have  been  worn  by  being  suspended  and 
carried  in  ice,  over  rocks  and  earth,  under  water."    (See  Dobson,   105.) 

(The  observations  of  Peter  Dobson,  a  cotton  manufacturer  of 
Vernon,  were  keen,  and  his  views  of  glaciation  were  far  in  advance 
of  his  time.  Mr.  Dobson  received  the  enthusiastic  endorsement  of 
Murchison  in  the  Annual  Address  of  the  Geological  Society  of  London, 
1S42.— Ed.) 

105.  Dobson,  P. 

Hints  on  the  iceberg  theory  of  drift. 

Am.  Jour.  Sci.  (i),  xlvi,  169-172,  1844. 

Describes  striated,  subangular  bowlders,  which  indicate  work  of  ice, — 
presumably  icebergs.      (See  Dobson,   104.) 

(This  letter  of  Mr.  Dobson's  was  written  to  Prof.  Hitchcock,  Novem- 
ber 15,  1837,  and  sent  to  the  American  Journal  of  Science  in  1844. — 
Ed.) 

106.  Dorsey,  C.  W.,  and  Bonsteel,  J.  A. 

Soil  survey  in  the  Connecticut  valley. 

U.  S.  Dept.  Agric,  Bur.  Soils,  Rept.  Field  Oper.  for 
1899,  125-140,  6  pis.,  map,  1900. 

The  area  described  in  Connecticut  extends  from  Glastonbury  to  the 
Massachusetts  line,  and  from  the  eastern  crystallines  to  the  Talcott 
range.  Tobacco  soils  are  described  in  detail  under  the  headings:  Tri- 
assic  stony  loam;  Holyoke  stony  loam;  Windsor  sand;  Hartford  stony 
loam;  Podunk  fine  sandy  loam;  Connecticut  meadows;  Enfield  sandy 
loam;   Suffield  clay;   Elmwood  loam;   Connecticut  swamp. 

107.  Eaton,  G.  F. 

Notes  on  the  collection  of  Triassic  fishes  at  Yale. 

Am.  Jour.  Sci.,  (4)  xv,  259-268,  18  figs.,  1903. 

The  following  species  are  described:  Semionotus  fultus;  S.  microp- 
terus;  S.  Marshi;  S.  tenuiceps;  S.  ovatus;  Catopterus  gracilis.  Semi- 
onotus micropterus  is  known  only  from  Connecticut. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  3I 

108.  Eckel,  E.  C. 

Brown  hematite  deposits  of  eastern  New  York  and 
western  New  England. 

Eng.  Min.  Jour.,  Ixxviii,  432-434,  6  figs.,  1904. 

Two  mines  occur  in  Salisbury.  The  Davis  mine  from  top  to  bottom 
shows  limonite  and  clay  15-20  ft.;  ocher  20-40  ft.;  lenses  of  manganese 
ore;  "black  ocher"  1-5  ft.  The  ore  contains  manganese  and  slight  amount 
of  phosphorus,  and  was  originally  deposited  as  limonite.  The  Ore 
Hill  mine  consists  of  a  large  body  of  disintegrated  ore  mi.xed  with  clay. 
The  iron  content  runs  from  35%  to  50%.  Manganese  and  iron  car- 
bonate, also  phosphorus,  occur.  The  ore  originated  as  replacement  of 
limestone  by  iron  carbonate. 

109.  Eggleston,  J.  W. 

Some  glacial  remains  near  Woodstock,  Connecticut. 
Am.  Jour.  Sci.,  (4)  xiii,  403-408,  1902. 

Description  of  kames,  eskers,  kettle-holes,  and  terraces  of  an  old 
lake  bed  of  which  Woodstock  pond   is  the  remnant. 

iio.     Emerson,  B.  K. 

The  age  and  cause  of  the  gorges  cut  through  the  trap 
ridges  by  the  Connecticut  and  its  tributaries. 

Am.  Assoc.  Adv.  Sci.,  Proc,  xxxv,  232,  1886. 

"  The  gorges  were  cut  by  the  pre-Glacial  drainage,  and  the  streams 
were  restored  to  their  old  course  by  the  position  of  their  deltas." 

111.  Emerson,  B.  K. 

Diabase,  pitchstone,  and  mud  inclosures  of  the  Triassic 
trap  of  New  England. 

Geol.  Soc.  America,  Bull.,  viii,  59-S6,  7  pis.,  1897. 

The  Meriden  "  Ash  Bed "  is  described  in  detail,  including  the 
petrography  and  chemistry  of  the  pitchstone,  glass  and  sand.  The 
origin  of  the  glasses  and  minerals  is  discussed,  and  an  analysis  of  the 
basic    pitchstone    given. 

112.  Emerson,  B.  K. 

Holyoke  Folio,   ^Massachusetts-Connecticut. 

U.  S.  Geol.  Surv.,  Geol.  Atlas  U.  S.,  Folio  No.  50,  1898. 

Topography,  general  and  economic  geology  of  a  strip  about  2}/2  miles 
wide  along  the  north  edge  of  Connecticut  between  the  meridians  73°  and 
'j2.°  30'.  Describes  the  following  formations:  Washington  gneiss; 
Becket  gneiss;  Hoosac  schist;  Chester  amphibolite;  Sugarloaf  arkose; 
Longmeadow  sandstone;  Holyoke  diabase;  Chicopee  shale;  and  Glacial 
deposits. 

113.  Emerson,  B.  K. 

Geology  of  eastern  Berkshire  county,  Massachusetts. 
U.  S.  Geol.  Surv.,  Bull.  No.  159,  135  pp.,  9  pis.,  16  figs., 
maps,  1899. 

Geology  of  parts  of  the  towns  of  Norfolk,  Colebrook,  North 
Canaan,    and   Hartland.      In   the   North   Canaan-West   Norfolk   area   are 


32  CONNECTICUT    GEOL.    AND    NAT,    HIST.    SURVEY.        [Bull. 

found:  Hinsdale  limestone  and  Washington  gneiss,  pre-Cambrian; 
hornblende  schist,  Becket  conglomerate  gneiss,  Cambrian;  Stockbridge 
limestone,  Silurian.  Analyses  of  nodule  from  gneiss  and  of  pre- 
Cambrian  limestone.     Bibliography. 

114.  Emerson,  B.  K. 

Note  on  corundum  and  a  graphitic  essonite  from  Bark- 
hamsted,  Connecticut. 

Am.  Jour.  Sci.,  (4)  xiv,  234-236,  1902. 

Description  of  the  corundum  and  a  graphitic  garnet  rock  occurring  in 
a  coarse  mica  schist. 

115.  Emmons,  E. 

Agriculture  of  New  York,  comprising  an  account  of  the 
classification,  composition,  and  distribution  of  the  soils 
and  rocks  and  natural  waters  of  the  different  geological 
formations,  together  with  a  condensed  view  of  the  cli- 
mate and  agricultural  productions  of  the  State. 

I,  27'^  PP->  21  pis.,  4°,  Albany,  1846.  (Has  a  good  map.) 
Chapter  on  "  the  Taconic  system  "  issued  separately,  67 
pp.,  6  pis.,  4°,  Albany,  1844. 

Stockbridge  limestone  and  accompanying  schists  are  described  and 
stated  to   rest  on   Taconic  slates. 

(The   Taconic   system   of  Emmons  along  western   New   England   and 
eastern    New    York    corresponds    to    the    Cambrian    and    Ordovician    sys- 
tems   combined.      Emmons    believed    the    Taconic    to   be    an    independent' 
system  because   it  rests  vtnconformably  upon   Primary  schists   and  passes 
unconformably  beneath   the   New  York  system. —  Ed.} 

(See  Dana,  48,   59,  6r,  65;  Walcott,  286,  287.) 

116.  Pippin,  E.  O. 

Soil  survey  of  the  Connecticut  valley. 
U.  S.  Dept.  Agric,  Bur.  Soils,  Rept.  Field  Oper.  for  1903, 
31-61,  map,  1904. 

The  work  done  in  1899  was  extended  by  the  survey  of  260  square 
miles  in  Massachusetts  and  Connecticut.  The  work  of  the  two  years 
resulted  in  a  survey  of  that  part  of  the  Connecticut  Triassic  between 
Berlin  and  the  Massachusetts  line.  The  types  of  soil  represented  are 
Holyoke  stony  loam;  Triassic  stony  loam;  Hartford  sandy  loam;  Con- 
necticut meadows;  Windsor  sand;  Chicopee  gravel  loam;  Enfield 
sandy  loam;  Manchester  sandy  loam;  Connecticut  swamp;  Norfolk 
coarse  sandy  loam;  Suffield  clay;  Elmwood  loam;  Podunk  fine  sandy 
loam;   Bernardston  loam. 

117.  Frazer,  P.,  Jr. 

Description  of  microscopic  sections  of  traps. 

Am.   Phil.   Soc,   Proc,  xiv,  430,  431,   1876. 

Comparison  of  traps  from  Pennsylvania  and  Connecticut.  The  fine- 
grained, greenish  dplerites  were  exactly  alike  in  both  localities;  coarse- 
grained gray  rock,  which  in  fragments  seemed  identical,  under  the 
microscope  showed  differences,-  the  specimen  from  Connecticut  being 
coarse-grained  dolerite,  while  that  from  Pennsylvania  was  true  syenite. 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  33 

ii8.     Frazer,  P.,  Jr. 

[Review  of]  "  On  the  physical  history  of  the  Triassic 
formation  in  New  Jersey  and  in  the  Connecticut  valley," 
by  I.   C.  Russell. 

Am.  Nat.,  xiii,  289-292,  1879. 

Criticism  of  Russell's  views  regarding  the  Triassic  formation.  (See 
Russell,   249.) 

119.  Fuller,  M.  L. 

Triassic  rocks  of  the  Connecticut  valley  as  a  source  of 
water-supply. 

U.  S.  Geol.  Surv.,  Water-Supp.  and  Irr.  Paper  No.  no, 
95-812,  8  figs.,  1905. 

Occurrence  of  waters  in  Triassic  rocks  of  various  types:  influence 
of  jointing  and  faulting  on  the  underground  waters;  conditions  favor- 
able to  flowing  wells;  water  is  in  most  instances  highly  mineralized, 
but  rarely  subject  to  pollution.     Proper  depth  of  wells. 

120.  Gannett,  H. 

A  geographic  dictionary  of  Connecticut. 

U.  S.  Geol.  Surv.,  Bull.  No.  117,  e^  pp.,  1894. 

All  the  names  of  towns,  rivers,  etc.,  given  on  the  topographic  atlas 
of  1893  are  listed  and  briefly  described;  the  area  of  each  county  is 
given.  « 

121.  Gannett,  H. 

Magnetic  declination  in  the  United  States. 
U.  S.  Geol.  Surv.,  17th  Ann.  Rept.  for  1895-96,  pt.  i,  211- 
428,  1896. 

(See  also,  U.  S.  Coast  and  Geod.  Surv.,  Rept.  for  1888.) 

Data  for  determination  of  secular  variation  based  on  observations 
at  Plartford  from  1810  to  1879,  at  New  Haven  from  1811  to  1885,  and 
in  less  degree  at  other  stations.  The  west  declination  of  the  needle  in 
1900  for  places  in  Connecticut  is  as  follows:  Stamford  9°  45';  Norwalk 
10°  10';  Black  Rock  10°  10';  Bridgeport  9°  40';  Hartford 
9°  20';  Saybrook  10°  10';  Middletown  10°  10';  Milford  9°  ss';  New 
Haven  9°   35';   Hebron  9°    10';   Pomfret   11°  00';   Putnam   11°    10'. 

122.  Gibb,  G.  E. 

Crystallized  bodies   discovered   in   meteoric   stone. 
Am.  Min.  Jour.,  i,  190,  1814. 

Pyrite  crystals  found  in  Weston  meteorite;  prove  rock  not  formed 
in  the   air.      (See    Silliman   and  Kingsley,   261.) 

123.  Gregory,  H.  E. 

Connecticut.     (Well    and    spring    records.) 
U.    S.    Geol.    Surv.,    Water-Supp.    and    Irr.     Paper    No. 
102,  127-159,  1904. 

Considers  briefly  the  underground  water  conditions  (127)  and  gives 
tables  and  notes  relating  to  wells  (128-149)  and  springs  (149-159.)     The 

3 


34  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

well  data  include  source,  temperature,  yield,  quality  (including  analyses), 
and  uses;  the  spring  data,  temperature,  yield,  source,  use,  improve- 
ments, and  quality   (including  analyses). 

124.  Gregory,  H.  E. 

Underground  waters  of  eastern  United  States:  Connec- 
ticut. 

U.  S.  Geol.  Surv.,  Water-Supp.  and  Irr.  Paper  No. 
114,  76-81,  map,  1905. 

The  water  supply  as  related  to  the  geology  of  the  state.  The  lime- 
stone area,  sandstone  area,  crystalline  area,  faults,  drift,  are  the  sub- 
heads. 

124a.     Gregory,  H.  E. 

The  Geology  of  Connecticut  as  related  to  water  supply. 
Connecticut    Board   Agric,    Rept.,   283-297,    1906. 

Description  of  the  sources  of  water  supply  —  rivers,  lakes,  ground 
water. 

124b.     Gregory,  H.  E.,  and  Rice,  W.  N. 

Manual  of  Connecticut  geology. 

Connecticut   State   Geol.   Nat.    Hist.    Surv.,   Bull.   No.   6. 
259  pp.,  31  pis.,  22  figs.  (10  maps),  1906. 
(See    Rice   and  Gregory,   243a.) 

124c.     Gregory,  H.  E.,  and  Robinson,  H.  H. 

Preliminary   geological   map   of   Connecticut. 

Connecticut  State  Geol.  Nat.  Hist.  Surv.,  Bull.  No.  7. 
39  pp.,  I  fig.,  1907,  together  with  a  geological^  map  of  Con- 
necticut, 1906. 

A  description  of  the  geological  map,  also  an  outline  of  the  geology 
of  the  state,  history  of  the  Connecticut  surveys,  and  an  outline  of 
geological  work  done  in  the  state  by  various  organizations  and  indi- 
viduals. 

125.  Griswold,  L.  S. 

A  basic  dike  in  the  Connecticut  Triassic. 
Mus.  Comp.  Zool.,  Bull,  xvi,  239-242,  1893. 

Description  (chiefly  petrographic)  of  a  dike  occurring  on  the  outlet  of 
Beseck  lake,  about  a  quarter  of  a  mile  west  of  the  Air  Line  R.R.  at 
Baileyville;    the    rock    probably   an    augite-amphibole-fourchite. 

126.  Gurlt,  A. 

On  a  remarkable  deposit  of  wolfram  ore  in  the  United 
States. 

Am.  Inst.  jMin.  Eng.,  Trans.,  xxii,  236-242,   1893. 

Description  of  the  wolfram  ores  and  their  geological  occurrences. 
The  Connecticut  ores,  consistinc;  of  wolframite,  scheelite,  and  wolfram 
ochre,  occur  upon  a  "  so-called  contact  deposit  "  imbedded  between 
crystalline  limestone  and  gneiss  in  Trumbull.  The  wolframite 
crystals  are  pseudomorphs  after  scheelite.  Brief  history  of  the  work- 
ings  of  the  mine   is   given.      (See   Ilobbs,    156.) 


^O.    8.]         BIBLlOGRArHY    OF    CONNECTICUT    GEOLOGY.  35 

27.  Hall,  J. 

Paleontology  of  New  York,  volume  3,  containing  de- 
scriptions and  figures  of  the  organic  remains  of  the  Lower 
Helderberg  group  and  the  Oriskany  sandstone,  1855-59  (with 
volume  of  120  plates),  xii,  523  pp.,  4°,  Albany,  1859. 

The  introduction  to  this  volume  (1-96)  includes  a  general  discussion 
of  the  conditions  of  deposition  and  of  mountain-making,  with  mention 
.  of  formations  occurring  in   Connecticut. 

28.  Hawes,  G.  W. 

The  trap  rocks  of  the  Connecticut  valley. 
Am.  Jour.  Sci.,  (3)  ix,  185-192,  1875. 

Demonstration,  by  chemical  analyses,  of  the  common  source  of  the 
hydrous   and   anhydrous  varieties   of   trap   rock. 

29.  Hawes,  G.  W. 

The   rocks   of   the    "  chloritic    formation "    on    the    western 
border  of  the  New  Haven  region. 
Am.  Jour.  Sci.,  (3)  xi,  122-126,  1876. 

■Proof,  by  chemical  analysis,  of  the  similarity  between  the  metamor- 
phic   schists   and   trap   rocks   of   the   New    Haven    region. 

30.  Hawes,  G.  W. 

On  the  mineralogical  composition  of  the  normal  Meso- 
zoic  diabase  upon  the  Atlantic  border. 
U.  S.  Nat.  jNIus.,  Proc,  iv,  129-134,  1881. 

Chemical  analyses  of  these  rocks  show  that  the  unaltered  Mesozoic 
diabases  are  all  very  much  alike,  and  are  composed  of  augite,  iron  oxide, 
in  the  form  of  magnetic  and  titanic  iron,  and  a  feldspar  that  has  been 
shown  to  be  labradorite:  the  Triassic  diabases  are  monotonously  like 
those  in  the  older   formations.      (See  Dana,    50.) 

31.  Hitchcock,  C.  H. 

On  the  so-called  talcose  schist  of  Vermont. 

Am.  Assoc.  Adv.   Sci.,   Proc,  xiii,  321-329,   i860. 

Description,  both  chemical  and  geological,  of  so-called  talcose  schist 
of  Vermont;  name  a  misnomer;  comparatively  little  magnesia.  Brief 
mention  of  the  Connecticut  schist  as  an  e.xtension  of  the  Vermont 
area. 

32.  Hitchcock,  C.  H. 

The  relations  of  the  geology  of  New  Hampshire  to  that 
of  the  adjacent  territory. 

Geol.  of  New  Hampshire,  ii,  3-36,  i  pL,  Concord,  1877. 

Reference  to  the  formations  of  the  Connecticut  valley,  including 
the  sandstone   of   Connecticut. 

33.  Hitchcock,  C.  H. 

Maine,  New  Hampshire,  Vermont,  Massachusetts,. 
Rhode  Island,  and  Connecticut,  geological  formations. 


36  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

Macfarlane's  Am.  Geol.  R.  R.  Guide,  56-66,  1879;  2d 
ed.,  rev.  and  enl.,  1890. 

List  of  stations  on  Connecticut  railroads  given,  with  character  and 
age  of  rock  to  be  seen  at  each  place.  An  attempt  is  made  to  correlate  the 
rock  groups  of  Percival  with  those  of  other  localities,  thus  introducing 
the  terms  Laurentian,  Montalban,  etc.,  into  Connecticut  geology. 

134.  Hitchcock,  C.  H. 

North  America  in  the  ice  period. 

Pop.  Sci.  Mon.,  XX,  229-242,  1882. 

There  was  an  eastern  American  area  of  ice  which  included  Con- 
necticut, and  whose  center  was  in  Labrador.  Old  channels  of  the 
Hudson  and  Connecticut  rivers  indicate  an  oscillation  of  level. 

135.  Hitchcock,  C.  H. 

Geological  map  of  United  States  and  part  of  Canada. 
Am.  Inst.  Min.  Eng.,  Trans.,  xv,  465-488,  map,  1886. 

Discussion  and  description  of  the  scheme  of  coloration  and  nomen- 
clature, recommended  by  the  International  Geological  Congress,  for 
representing  the  various  geological  formations  on  a  map;  review  of 
earlier  maps  of  Maclure,  Hall,  Lyell,  E.  Hitchcock,  Marcou,  H.  D. 
Rogers,  Hall  and  Lesley,  Hall  and  Logan,  C.  H.  Hitchcock  and  Blake, 
C.  H.  Hitchcock  and  McGee.  Brief  mention  of  geological  formations  in 
Connecticut. 

136.  Hitchcock,  E. 

A  sketch  of  the  geology,  mineralogy,  and  scenery  of 
the  regions  contiguous  to  the  river  Connecticut;  with  a 
geological  map  and  drawings  of  organic  remains;  and  oc- 
casional botanical  notices. 

Am.  Jour.  Sci.,  (i)  vi.,  1-86,  201-236,  map,  1823;  vii,  1-30, 
map,  1824. 

In  these  articles  are  described  the  "  East  Haven  granite  " ;  granitic 
veins  "contemporaneous  with  the  formation  of  the  rock";  porphyritic 
granite;  hornblende  slate,  mica  slate,  as  in  Bolton,  Litchfield,  etc.; 
chlorite  slate  in  Milford;  Primitive  greenstone  in  West  Haven  and 
Wolcott;  verd-antique  in  Milford;  Old  Red  sandstone,  including  large 
areas  of  "Coal  formation"  and  containing  fossil  bones;  Secondary 
greenstone,  its  structure,  composition  and  distribution.  The  "  green- 
stone "  forms  beds  in  the  peculiar  rocks  of  the  Coal  formation,  and 
both  greenstones  and  Coal  formation  rest  on  Old  Red  sandstone;  talus 
proves  recent  creation  of  earth;  greenstone  probably  of  igneous 
origin;  coal  occurs  in  Middletown,  Chatham,  Southington,  Berlin,  Som- 
ers,  Ellington,  Enfield;  is  in  very  thin  seams;  fish  remains  obtained  at 
Westfield,  and  plants  from  Granby;  alluvion;  geest,  the  bowlders  of 
which  were  deposited  by  a  current  from  the  northeast.  Eleven  mines 
are  described,  also  119  mineral  and  rock  species.  Lakes  formerly 
existed  in  the  Connecticut  valley.  Table  given  showing  relative  age  of 
all  rocks. 

137.  Hitchcock,  E. 

Miscellaneous  notices  of  mineral  localities,  with  geo- 
logical remarks. 

Am.  Jour.  Sci.,  (i)  xiv,  215-230,  1828. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  37 

Native  iron,  augite,  and  tremolite  at  Canaan;  iron  ore  at  Salisbury; 
prehnite,  greenstone,  sandstone,  and  shale  at  Woodbury;  petrified  tree 
stump  at  Southbury.  In  the  vicinity  of  Lane's  mine  at  Monroe  were 
found  wolfram,  topaz,  carbonate  of  iron,  hornblende,  smoky  and  yellow 
quartz,  green  feldspar,  brown  spar,  associated  with  tripoli,  black 
schorl,  chlorophane. 

138.  Hitchcock,  E. 

Report  on  the  geology  of  Massachusetts,  Pt.  i.  Eco- 
nomic geology. 

Am.   Jour.   Sci.,    (i)   xxii,    1-70,  map,   1832. 

Describes  the  location  and  character  of  the  following  formations  in 
Connecticut:  mica-slate,  argillaceous  and  flinty  slate,  limestone,  scapolite 
rocks,  gneiss,  hornblende  slate,  granite.  New  Red  sandstone,  greenstone, 
talcose  slate;  states  their  value  as  building  stones  and  soil-formers. 
Mentions  iron  ore  at  Salisbury,  copper  near  Granby;  soap-stone  near 
Somers;  also  porcelain  clay.  Gives  opinion  that  the  so-called  coal 
formation  of  Connecticut  is  the  New  Red  sandstone  or  its  equivalent. 

139.  Hitchcock,  E. 

Ornithichnologj'.  Description  of  the  foot-marks  of 
birds  (ornithichnites)  on  New  Red  sandstone  in  Massa- 
chusetts. 

Am.  Jour.  Sci.,  (i)  xxix,  307-340,  2  pis.,  1836.  Abstract: 
Neues    Jarhb.,    467-472,    1836. 

General  and  detailed  description  of  bird-tracks  found  in  sandstone 
in  various  parts  of  Massachusetts.  Comparison  of  birds  to  modern 
species.  Theories  as  to  the  geological  age  of  the  sandstone,  as  to  the 
geographical  conditions  at  the  time  when  the  birds  were  alive,  and  as  to 
the  manner  in  which  the  foot-marks  were  made  and  preserved. 

140.  Hitchcock,  E. 

Bed  of  the  Connecticut  river. 

Geol.   Massachusetts,   Final   Rept.,  334,   1841. 

Describes  flow  and  fall  of  the  Connecticut  River. 

141.  Hitchcock,  E. 

The  phenomena  of  drift,  or  glacio-aqueous  action  in 
North  America,  between  the  Tertiary  and  Alluvial  periods. 

Assoc.  Am.  Geol.,  Trans.,   164-221,   1843. 
Discussion  of  the  origin  of  drift:     "  Phenomena  of  drift  are  the  re- 
sult of  the  joint  and  alternate  action  of  ice  and  water."     Some  of  the 
data  taken  from  observations  in  Connecticut. 

(The  author  at  this  early  date  accepted  a  great  deal  of  the  glacial 
theory  as  known  at  the  present  day. —  Ed.) 

142.  Hitchcock,  E. 

Description  of  several  species  of  fossil  plants  from  the 
New  Red  sandstone  formation  of  Connecticut  and  Massa- 
chusetts. 

Assoc.  Am.  Geol.,  Trans.,  294-296,  i  pi.,  1843. 

Description  of  Coniferae  found  at  Woodbury  and  Southbury. 


38  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

143.  Hitchcock,  E. 

On  the  trap  tufif,  or  volcanic  grit  of  the  Connecticut 
valley,  with  the  bearings  of  its  history  upon  the  age  of 
the  trap  rock  and  sandstone  generally  in  that  valley. 

Am.  Jour.  Sci.,  (2)  iv,  199-207,  2  figs.,  1847.  Abstract: 
Am.  Jour.  Sci.,   (i)   xlvii,   103,   104,  1844. 

Tuff  near  Mount  Tom  described  in  detail.  Order  of  events:  De- 
position of  sandstone;  bedded  traps  produced  at  intervals;  "  principal 
trap  ranges  emerged  with  considerable  disturbance  bf  sandstone." 
General  dip  of  sandstone  due  to  lateral  pressure. 

144.  Hitchcock,  E. 

An  attempt  to  discriminate  and  describe  the  animals 
that  made  the  fossil  foot-prints  of  the  United  States,  and 
especially  of  New  England. 

Am.  Acad.  Arts  Sci.,  Mem.,  iii,  129-256,  24  pis.,  1848. 

Forty-seven  species  of  animals  described  from  their  foot-prints 
have  been  found  in  the  Connecticut  valley,  in  Massachusetts  and  Con- 
necticut, classified  as  follows:  12  quadrupeds;  2  annelids  or  molluscs; 
3  of  doubtful  origin;  32  bipeds,  mostly  birds.  The  Connecticut  localities 
where  the  remains  were  found  are  Suffield,  Rocky  Hill,  Wethersfield 
cove,  2  miles  south  of  the  cove,  Portland,  2  miles  west  of  Middletown. 

145.  Hitchcock,  E. 

Illustrations   of   surface   geology. 

Smithson.   Contr.   Knowl.,  ix,  art.  iii,   155,   12  pis.,   1857. 

Detailed  description  of  the  terraces  and  beaches,  particularly  of 
the  Connecticut  valley;  they  were  formed  during  a  period  of  sub- 
mergence of  the  continent  when  the  ocean  stood  relatively  2,000  feet 
higher  than  its  present  level;  drift  (unmodified  deposits)  produced  par- 
tially^ by  glaciers,  mostly  by  icebergs,  possibly  by  mountain  slides  and 
earthquake  waves. 

146.  Hitchcock,  E. 

Ichnology  of  New  England;  a  report  on  the  sandstones 
of  the  Connecticut  valley,  especially  its  fossil  foot-marks, 
xii,  220  pp.,  50  pis.,  including  hand-colored  map.  Boston, 
1858,  published  by  the   Commonwealth   of  Massachusetts. 

Abstract  and  review:  Am.  Jour.  Sci.,   (2)  xxvii,  270-272, 

1859. 

First  foot-prints  found  in  South  Hadley,  1802,  spoken  of  as  tracks 
of  "  Noah's  Raven  ";  in  1836  tracks  observed  on  flagging  stone  from 
Montague,  and  sent  to  Hitchcock  by  Deane  as  "  foot-prints  of  birds." 
Connecticut  valley  sandstones  above  and  below  the  traps  are  of  differ- 
ent ages,  the  upper  being  Jurassic,  the  lower  may  be  Triassic  and  Per- 
mian. Trap  was  deposited  on  sandstone.  Connecticut  localities  from 
which  foot-prints  were  obtained  are  Suffield,  Rocky  Hill,  Wethersfield, 
Portland,  Middletown,  Middlefield,  Durham.  The  question  of  the  dis- 
covery of  foot-prints  is  discussed,  and  a  bibliography  of  63  titles  is 
given. 
_,_  (See    Deane,    loi.) 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  39 

147.     Hitchcock,  E. 

Supplement  to  the  ichnology  of  New  England. 

93  pp.,  20  pis.,  edited  by  C.  H.  Hitchcock,  published  by 
Commonwealth  of  Massachusetts,  1865. 

In  this  report  Z7  new  species  are  described,  and  a  catalogue  is  given 
of  the  specimens  in  the  Hitchcock  Ichnological  Cabinet  at  Amherst. 

148      Hitchcock,  Edward. 

Biography. 

C.  H.  Hitchcock:  Am.  GeoL,  xvi,  I33-I49.  1895. 
Lesley:  Nat.  Acad.  Sci.,  Biog.  Mem.,  i,  1 15-134,   1877. 
Pop.   Sci.    I\Ion.,   xlvii,   689-696,    1895. 

149.  Hobbs,  W.  H. 

Notes  on  some  pseudomorphs  from  the  Taconic  region. 
Am.  GeoL,  x,  44-48,  1892. 

Description  of  tremolite  pseudomorphs  after  salite,  also  pseudo- 
morphs after  feldspar,  found  in  the  northwestern  part  of  Connecticut, 
mainly    in    Canaan    and    Norfolk   townships. 

150.  Hobbs,  W.  H. 

On  the  geological  structure  of  the  Mount  Washington 
mass  of  the  Taconic  range. 

Jour.  Geol.,  i,  717-736,  4  figs.,  2  pis.,  map  and  sections, 
1893- 

Evidence  that  schist  of  this  vicinity  is  below  limestone,  and  structure 
of  mountain  is  essentially  anticlinal.  Schist  of  northern  extremity  is 
above  limestone;  calcareous  beds  alternate  with  the  schists,  which  have 
been  shown  to  possess  marked  lithological  differences;  probability  of  the 
beds  being  Ordovician,  although  a  portion  may  be  Cambrian.  The 
Mount  Washington  series  consists  of  four  members,  in  order  of  age 
as  follows:  1.  Canaan  dolomite;  2.  Riga  schist;  3.  Egremont  lime- 
stone; 4.  Everett  schist.  Striking  lithological  distinctions  separate  the 
two    schist    horizons. 

151.  Hobbs,  W.  H. 

The  geological  structure  of  the  Housatonic  valley  lying 
east  of  Mount  Washington. 

Jour.  GeoL,  i,  780-802,  9  figs.,  3  pis.,  map  (pi.  v),   1893. 

District  contains  same  horizons  as  Mount  Washington.  Ridges  are 
anticlinals  of  Riga  schist  produced  by  north-south  'compression:  Area 
marked  by  unsymmetrical  folds.'  A  reversed  fault  (Housatonic  fault) 
has  complicated  the  stratigraphy,  and  resulted  in  production  of  meta- 
morphic  minerals. 

152.  Hobbs,  W.  H. 

Differential  faults. 

Am.  GeoL,  xiv,  35-37,  1894. 

Discussion  of  a  new  type  of  fault  — "  differential  fold  fault," — and 
description  of  one  at  the  Housatonic  river   in  Canaan. 


40  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

153.  Hobbs,  W.  H. 

Mineralogical  notes. 

Am.  Jour.  Sci.,  (3)  i,  121-128,  1895. 

Description  of  apatite  and  hessonite  from  a  pegmatite  vein  in 
Canaan. 

154.  Hobbs,  W.  H. 

The  river  system  of  Connecticut. 

Jour.  Geol.,  ix,  469-485,  2  figs.,  2  maps  (pis.  i,  ii),  1901. 

The  rivers  of  Connecticut  exhibit  an  orientation  which  corresponds 
closely  with  the  directions  of  a  fault  series  observed  in  the  Pomperaug 
valley;  the  "  trough  lines "  of  streams  are  believed  to  owe  their  ex- 
istence to   faults. 

155.  Hobbs,  W.  H. 

The  Newark  system  of  the  Pomperaug  valley. 
U.  S.  Geol.  Surv.,  21st  Ann.  Rept.,  pt.  iii,  7-160,  59  figs., 
27  pis.,  1901. 

The  Newark  system  of  the  Atlantic  slope  in  the  light  of  recent 
studies;  previous  work  on  the  Newark  rocks  of  the  Pomperaug  valley; 
areal  distribution  of  the  Newark  in  the  Pomperaug  valley,  and  dis- 
cussion of  its  relation  to  the  basement  floor  of  crystalline  rocks;  petro- 
graphic  and  chemical  description  of  type  specimens  of  the  region.  Dis- 
cussion of  the  elevation  and  tilting  of  the  Newark  beds;  also  of  the 
elaborate  fault  system  of  the  region, —  main  direction  of  fault  lines, 
their  expression  in  topographic  forms,  their  origin,  comparison  with 
other  regions,  fault  lines,  and  drainage.  Discussion  of  the  steps  in  the 
degradation  and  erosion  of  the   region. 

(This  paper  deals  with  the  Pomperaug  area  of  Newark  rocks  after  the 
manner  of  treatment  of  the  Connecticut  valley  area  by  Davis.  This 
paper  and  the  one  by  Davis  (98),  contain  all  the  important  facts  re- 
garding the  Connecticut  Triassic. —  Ed.) 

156.  Hobbs,  W.  H. 

The  old  tungsten  mine  at  Trumbull,  Connecticut. 
U.  S.  Geol.  Surv.,  22d  Ann.  Rept.,  pt.  ii,  7-22,  1  fig.,  5  pis., 
1901. 

The  tungsten  minerals,  wolframite  and  scheelite,  are  found  at  the 
contact  between  a  crystalline  limestone  and  hornblende  gneiss;  the 
formation  of  wolframite  after  scheelite  is  noticed,  and  the  crystal- 
lographic  description  of  the  two  minerals  is  given.  The  associated  min- 
erals are  mica,  pyrite,  pyroxene,  scapolite,  garnet,  marcasite,  limonite, 
topaz,  fluor-spar,  margarodite,  quartz,  feldspar,  apatite,  sphene,  ilmenite, 
•  calcite,  zoisite,  epidote,  hornblende,  chalcopyrite,  malachite.  The  first 
workings  of  the  mine  were  for  copper,  lead,  and  silver. 
(See  Gurlt,  126;   Hobbs,   159.) 

157.  Hobbs,  W.  H. 

Still  rivers  of  western  Connecticut. 

Geol.  Soc.  America,  Bull.,  xiii,  17-26,  3  figs.,  2  pis.,  1901. 

The  Still  river  tributary  to  the  Farmington,  and  that  to  the  Housa- 
tonic,  owe  their  origin  partly  to  geological  structure  of  the  region,  and 
partly  to  a  damming  of  the  valley  by   Glacial  drift. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  4I 

158.  Hobbs,  W.  H. 

An  instance  of  the  action  of  the  ice  sheet  upon  slender 
projecting  rock  masses. 

Am.  Jour.  Sci.,  (4)  xiv,  399-403,  2  figs.,  i  pi.,  1902. 

Data  proving  that  the  former  peaks  of  Sherman  hill  and  Castle  rock,. 
in   the   Pomperaug  valley,   were   removed  by  glacier   ice. 

159.  Hobbs,  W.  H. 

Tungsten  mining  at  Trumbull  Connecticut. 
U.  S.  Geol.  Surv.,  Bull.  No.  213,  98,  1903. 

Tungsten  deposit  worked  from  1898  to  1901;  yield  of  ore  5%.  (See 
Hobbs,  156.) 

160.  Hobbs,  W.  H. 

Tectonic  geographj-  of  southwestern  New  England  and 
southeastern  New  York. 

Geol.  Soc.  America,  Bull.,  xv,  554-557 ;  Science,  xix,  527 ; 
Scient.  Am.,  Supp.,  Ivii,  23446,  1904. 

The  study  of  certain  key  areas,  among  them  Twin  lakes  valley  and 
Pomperaug  valley,  have  demonstrated  the  prevalence  of  normal  fault 
structures  and  their  importance  in  the  crustal  architecture  of  the  region 
described.  Joints  and  earth  lineaments  are  found  to  take  the  same 
directions.  The  facts  discovered  in  the  "  key  areas "  are  of  wider 
application. 

161.  Hobbs,  W.  H. 

Lineaments  of  the  Atlantic  border  region. 
Geol.    Soc.    America,    Bull.,   xv,   483-506,   4   figs.,   3    pis., 
1904. 

The  direction  of  dominant  lineaments  (or  rectilinear  earth  features), 
usually  due  to  faults  or  joints,  is  determined  for  the  region  between 
St.  Lawrence  bay  and  Georgia.  Connecticut  is  traversed  by  the  Con- 
necticut and  Franconia  lines  N  5°  E,  by  the  northern  fall  line  N  48°  E, 
and  by  the  Rias  coast  line,  N  65°   E. 

162.  Hovey,  E.  O. 

Observations  on  some  of  the  trap  ridges  of  East  Haven 
— ^Branford  region. 

Am.  Jour.  Sci.,  (3)  xxxviii,  361-383,  i  pL,  1889.  Ab- 
stract: Am.  Assoc.  Adv.  Sci.,  Proc,  xxxviii,  232,  233,  1S90; 
Am.  Nat.,  xxiv,  no,  1890. 

Description  of  Pond  rock  (Saltonstall  ridge),  Totoket  mountain,  and 
the  neighboring  ridges  of  trap;  their  general  geological  relations  to  the 
sandstone  and  to  each  other;  conclusions  as  to  origin;  Pond  rock  con- 
sidered  intrusive. 

163.  Hovey,  E.  O. 

A  relatively  acid  dike  in  the  Connecticut  Triassic  area. 
Am.  Jour.  Sci.,   (4)  iii,  287-292,  3  figs.,  1897. 

Petrographic  and  chemical  description  of  a  series  of  dikes  in  a 
railroad  cut  in  Fair  Haven.  The  analysis  of  one  dike  shows  it  to  be 
approximately   a   bostonite. 


42  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

164.  Hubbard,  O.  P. 

Great  bowlder  in  Woodbridge,  Connecticut. 
New  York  Acad.  Sci.,  Trans.,  iv,  25,  1887. 

Mention  of  a  great  basaltic  bowlder  (45x25x15  feet)  which  lies  on 
a  ridge  of  talcose  and  chlorite  slate,  5  miles  west  of  New  Haven.  It  was 
brought   from  the  Meriden   hills   by  a   glacier.    (Dana.) 

165.  Hulbert,  E.  M. 

Copper   mining   in   Connecticut. 

Connecticut   Quart.,  iii,  23-32,  8  illus.,   1897. 

The  various  localities  where  copper  has  been  found  within  the  state 
are  described,  and  an  account  given  of  their  discovery  and  history. 
Data  are  particularly  complete  regarding  the  mines  of  Whigville  (now 
Edgewood)    near   Bristol. 

166.  Hunt,  T.  S. 

On  some  of  the  crystalline  limestones  of  North  .Amer- 
ica. 

Am.  Jour.  Sci.,   (2)   xviii,  193-200,   1854. 

Description  of  four  classes  of  limestone,  their  geological  position  and 
relation  to  other  formations,  and  included  minerals.  The  limestone  of 
western   Connecticut   is   described. 

167.  Hunt,  T.  S. 

On  the  geognosy  of  the  Appalachian  system. 
Am.  Nat.,  v,  451-486,  1871;  Am.  Assoc.  Adv.  Sci.,  Proc, 
XX,  1-35,  1871. 

Age  and  geological  relations  of  the  crystalline  stratified  rocks  of 
North  America.  Separation  of  crystalline  strata  of  northern  New  York 
and  New  England  into  three  groups:  i.  The  Adirondack  or  Laurentide 
series;  2.  The  Green  mountain  series;  3.  The  White  mountain  series. 
Their  distinctive  characteristics;  tracing  of  the  groups  southward; 
geological  relations;  position  in  time  scale.  Discussion  of  the  "  Taconic 
system."  The  graphitic  mica  schists  holding  garnets  and  cyanite,  in 
Cornwall,  Connecticut,  belong  to  group  2;  other  schists  and  gneisses  of 
Connecticut  are  mentioned  as  belonging  to  one  or  more  of  the  three 
groups. 

168.  Hunt,  T.  S. 

Address  to  the  American  Association  for  the  Advance- 
ment of  Science   [abstract  and  review  of]    (Hunt,  167). 

Am.  Jour.  Sci.,   (3)   ii,  205-207,   1871. 

An  address  on  the  geology  of  the  .'\ppalachians,  and  the  origin  of 
the  crystalline  rocks.  Mentions  especially  the  rocks  of  New  Eng- 
land. 

("  The  conclusions  throughout  Dr.  Hunt's  address  are  open  to 
doubts   and    objections." — Am.   Jour.   Sci.) 

169.  Hunt,  T.  S. 

Remarks  on  the  stratification  of  rock  masses. 
Boston  Soc.  Nat.  Hist.,  Proc,  xvi,  237-239,  1874. 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  43 

The  stratiform  structure  in  erupted  rocks  due  to  the  arrangement  of 
the  elements  in  a  flowing  and  imperfectly  liquid  material;  well  shown 
in  a  specimen  from  Groton,  Connecticut,  in  which  a  large  angular 
fragment  of  strongly  banded  micaceous  gneiss  is  inclosed  in  a  fine- 
grained  eruptive   granite. 

T70.     Hunt,  T.  S. 

Special  report  on  the  trap  dikes  and  Azoic  rocks  of 
southern    Pennsylvania.     Pt.    I.     Historical    introduction. 

Geol.  Surv.  Pennsylvania  (2),  Rept.  E,  xxix,  253  pp., 
Harrisburg,  1878. 

The  state  geologist  of  Pennsylvania  asked  Mr.  Hunt  to  "  collate  all 
the  known,  supposed,  and  suspected  facts  of  American  Azoic  Geology." 
The  result  is  a  history  of  pre-Silurian  geology,  and  an  attempt  to 
reconcile  divergent  views.  \'arious  views  regarding  the  Taconic 
rocks,  Stockbridge  limestone,  etc.,  of  western  Connecticut  are  dis- 
cussed  without   arriving   at   definite   conclusions. 

171.     Hunt,  T.  S. 

Geology. 

Smithson.  Rept.,  325-345,  1882. 

Review  of  the  progress  of  geology  for  1882.  Mention  of  the  Con- 
necticut Triassic  as  described  by  Davis  —  sandstones  and  shales,  trap 
rocks   (dikes,  intruded  sheets,  extrusive  flows). 

T72.     Hunt,  Thomas  Sterry.     (1826-1892.) 

Biography. 

Frazer:  Am.  Geol.,  xi,  1-13,  1893. 

Can.  Rec.  Sci.,  v,  145-149,  1892-3. 

173.     Jackson,  C.  T. 

Observations  on  the  age  of  the  sandstone  of  the  United 
States. 

Boston  Soc.  Nat.  Hist.,  Proc,  iii,  3^5-336,  338-339. 
1850. 

Mention  of  the  similarity  of  the  sandstones  of  Nova  Scotia,  Maine, 
Massachusetts,  Connecticut,  and  New  Jersey.  Notice  that  the  trap 
comes  up  as  beds  rather  than  dikes,  always  between  the  strata  of 
sandstone,  never  through  them;  amygdaloidal  character  noticed;  the 
sandstone  is  referred  to  the  Silurian,  and  is  held  to  be  related  to 
the   Lake   Superior  sandstone. 

J74.     Johnston,  J. 

Notice  of  some  spontaneous  movements  observed  in 
the  sandstone  strata  in  one  of  the  quarries  at  Portland, 
Connecticut. 

Am.  Assoc.  Adv.  Sci.,  Proc,  viii,  283-286,  1855. 

Description  of  special  cases  where  the  sandstone  strata  moved  sud- 
denly about  ^  of  an  inch  on  being  partially  cut  through  in  quarrying; 
movement  takes  place  only  in  the  general  direction  of  north  and  south. 

(See    Niles,    225.) 


44  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

175-     Julien,  A.  A. 

On  the  geological  action  of  the  humus  acids. 
Am.  Assoc.  Adv.  Sci.,  Proc,  xxviii,  311-410,  map,  1880. 
Discussion  of  the  decomposition  taking  place  in  rocks,   including  the 
Triassic  sandstones   of  Connecticut,  and  the  source   of  the   iron  oxide. 

176.  Kemp,  J.  F. 

The  great  quartz  vein  of  Lantern  hill,  Mystic,  Con- 
necticut, and  its  decomposition. 

New  York  Acad.  Sci.,  Trans.,  xv,  189,  1896. 

Vein  400  feet  wide,  1,200  feet  long;  composed  almost  entirely  of  hard, 
milky  white  quartz,  which,  however,  is  very  crumbly,  due  to  effects  of 
faulting  or  crushing  rather  than  to  corroding  alkaline  solution.  The 
rock    contains    98-99.4%    SiO. 

(For  a  different  explanation  of  Lantern  hill,  see  Rice  and  Gregory, 
243a. —  Ed.) 

177.  Kemp,  J.  F. 

Granites   of  southern   Rhode   Island  and   Connecticut. 

Geol.  Soc.  America,  Bull.,  x,  361-682,  7  pis.,  1899.  Ab- 
stract: Am.  GeoL,  xxiii,  105-106,  1899;  Science,  ix,  140- 
141,  1899. 

Occurrence  and  petrography  of  granites  along  the  shore  from  Rhode 

Island    to    New    Haven,    particularly    at    Westerly    and    Stony  Creek. 

Granites    are    intrusives    of    post-Cambrian    age;    pegmatites    and  aplites 

are    described.      Analyses    of    granite    from    Westerly,    Millstone  point, 
Stony   Creek. 

178.  Killebrew,  J.  B. 

Report  on  the  culture  and  curing  of  tobacco  in  the 
United  States. 

Census  of  U.  S.,  loth  Rept.,  iii,  583-950,  1883. 

The  soil  of  the  Connecticut  and  Housatonic  valleys  is  suitable  for 
tobacco.*'  Terraces  of  the  Champlain  period  and  flood-plain  deposits  are 
best  adapted.  Character  of  soil  derived  from  porphyry,  micaceous  rocks, 
granite,   chlorite  slate,   sandstone,   and   trap   is   discussed. 

179.  Kimball,  H.  H. 

Ice  caves  and  frozen  wells  as  meteorological  phe- 
nomena. 

Mon.  Weath.  Rev.,  366-371,  August,  1901. 

Ice  deposits  found  in  summer  in  ravines  and  gorges  at  Meriden, 
Northfield,    and    Salisbury. 

180.  Knowlton,  F.  H. 

Report  on  fossil  wood  from  the  Newark  formation  of 
South  Britain,  Connecticut. 
U.  S.  Geol.  Surv.,  21st  Ann.  Rept.,  pt.  iii,  161-162,  1901. 

Microscopical  description  of  more  or  less  silicified  wood,  of  the 
species  Araucarioxylon  virginianum  Knowlton,  found  in  the  Newark 
formations  of  South  Britain.  The  Connecticut  material  is  identical 
with  species  from  Virginia  and  North   Carolina. 


No.    8.]        LIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  45 

181.  Koons,  B.  F. 

High  terraces  of  the  rivers  of  eastern  Connecticut. 
Am.  Jour.  Sci.,  (3)  xxiv,  425-428,  1S82. 

Positions  of  former  ice  dams  as  indicated  by  fhe  terraces  on  the 
Thames,   Shetucket,  Natchaug,  Hope,  and  Willimantic  rivers. 

182.  Koons,  B,  F. 

On  pot-holes  on  the  edge  of  a  bluff  at  Gurleyville,  Con- 
necticut. 

Am.  Jour.  Sci.,  (3)  xxv,  471,  1883. 

Brief  description  of  pot-holes  on  the  east  side  of  the  Fenton  river, 
four  miles  above  its  mouth. 

183.  Kiimmel,  H.  B. 

Some  rivers  of  Connecticut. 

Jour.  Geol.,  i,  371-393,  4  figs.,  i893- 

Connecticut  streams  have  all  been  greatly  readjusted.  The  Housa- 
tonic  has  been  "conformably  superimposed."  The  lower  Connecticut 
is  a  revived  consequent  stream.  The  former  course  of  the  Farmington 
was  southward  to  New  Haven;  the  Scantic  and  Quinnipiac  have  been 
much  modified. 

184.  La  Metherie,  J.  C.  de. 

Abstract  of  Silliman's  mineralogical  and  geological  ob- 
servations on  New  Haven  and  its  vicinity. 
Jour.  Phys.   Chim.,  Ixxv,  75-79,   1812. 
(See  Silliman,  260.) 

185.  Lee,  C.  A. 

Sketch  of  the  geology  and  mineralogy  of  Salisbury, 
Connecticut. 

Am.  Jour.  Sci.,  (i)  viii,  252-261,  1824. 

The  geology,  mineralogy,  and  naitural  scenery  of  Salisbury  are  de- 
scribed. The  principal  rocks  are  mica  slate,  fissile  and  injected  with 
quartz,  forming  the  highest  points,  and  granular  limestone.  A  chasm  or 
cave  in  the  compact  mica  slate  is  300x60x40  feet.  The  alluvial  deposits 
contain  iron  ore,  tree  trunks,  and  Indian  skeletons.  The  following 
minerals  are  reported:  calcium  carbonate,  calcium  sinter,  calcium  tufa, 
magnesium,  carbonate  of  lime,  dolomite,  sulphate  of  alumina,  9  varieties 
of  quartz,  fetid  carbonate  of  lime,  silicious  sinter,  hornstone,  jasper, 
staurotide,  mica,  schorl,  tourmaline,  feldspar,  beryl,  wacke,  scapolite, 
garnet,  epidote,  tremolite,  augite,  hornblende,  actinolite,  talc,  chlorite, 
argillaceous  slate,  potter's  clay,  sulphur,  petroleum,  graphite,  9  varieties 
of  iron,  galena,  zinc,  manganese,   titanium. 

186.  Lee,  C.  A. 

The  moving  rocks  of  Salisbury. 
Am.  Jour.  Sci.,   (i)  ix,  239-241,  1825. 

Bowlders  in  Northeast  and  Little  ponds  are  being  moved  shore- 
wards  by  the  ice;  one  rock  moved  zYz  feet  from  December,  1823,  to 
February,  1825,  which  is  less  than  the  usual  rate.     (See  Petros,  232.) 


46  COXNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [BulL 

187.  Lindsley,  H.  W. 

Building  stones  and  the   quarry  industry. 
Census  of  U.  S.,  loth  Rept.,  x,  126-129,  1880. 

A  short  description  is  given  of  the  Connecticut  quarries  and  quarry- 
regions.  The  brown  and  red  sandstone  quarries  at  Portland  and  else- 
where in  the  Connecticut  valley,  granite,  syenite,  serpentine,  and  verd- 
antique  marble,  are  included. 

188.  Loomis,  I.  F. 

The  town  of  Chatham. 

Connecticut  Quart.,  v,  37S-3,77,  1899. 

The  old  cobalt  mine  opened  at  Great  Hill  in  1762,  by  John  Stephan- 
ney;  worked  again  in  1770,  when  ore  was  shipped  to  England,  Holland, 
and  China.  Mine  operated  by  Seth  Hunt,  1818-1820;  by  C.  U.  Shepard, 
1844;  Edmund  Brown,  1850.  Ore  is  arsenical  pyrites,  containing  80% 
arsenic,   9%   iron,  4/^%   sulphur,  4%   cobalt,  and  a  trace  of  bismuth. 

189.  Leper,  S.  W. 

Fossils  of  the  anterior  and  posterior  shales. 
Geol.  Soc.  America,  Bull.,  ii,  425-430,  1891. 

Comparison  of  fauna  and  flora  from  different  localities  of  the  an- 
terior and  posterior  shales  sustains  the  theory  of  the  original  continuity 
of  the  horizons  through  all  the  now  faulted  blocks  of  the  Triassic  for- 
mation. Localities  explored  are  as  follows:  Durham,  Bluff  Head,  Higby, 
Berlin,  Southington,  East  Haven,  North  Guilford,  Stevens,  Westfield, 
South  Bloomfield,  North  Bloomfield.  Species  found,  as  follows:  Fishes, — 
Diplurus  longicaudatus,  Newb. ;  Catopterus  redfieldi,  Egerton;  Catopterus 
gracilis,  J.  H.  Redfield;  Ischypterus  micropterus,  Newb.;  Ptycholepis  mar- 
shii,  Newb.;  Catopterus  anguilliformis,  W.  C.  Redfield;  Catopterus  minor, 
Newb.;  Catopterus  ornatus,  Newb.;  Ischypterus  fultus,  Agassiz;  Ischyp- 
terus minutus,  Newb.;  Ischypterus  gigas,  Newb.  Plants. —  Otozamites 
latior,  Sap.;  Otozamites  brevifolius,  F.  Br.;  Loperia  simpe.xl,  Newb.; 
Cycadinocarpus  chapini,  Newb.;  Equisetum  ( ?) ;  Pachyphyllum  simile, 
Newb.;  Pachyphyllum  brevifolium,  Newb.;  Clathropteris  platyphylla, 
Brong. ;  Baiera  miinsteriana,  Ung. ;  Equisetum  rogersi,  Sch.;  Ctenophyl- 
lum  braunianum,  Sch.  Some  undetermined  species  both  of  fishes  and 
plants. 

190.  Loughlin,  G.  F. 

The  clays  and  clay  industries  of  Connecticut. 
I  Connecticut   State   Geol.   Nat.   Hist.   Surv.,   Bull.   No.   4, 

1-121,  1905. 

The  important  clay  areas  of  Connecticut  are  the  northern,  in  the 
vicinity  of  Hartford  and  Windsor,  Clayton,  Berlin,  Quinnipiac,  and  Mill- 
dale.  The  clays  are  discussed  under  the  following  heads:  Origin; 
geological  history;  chemistry  of  clays;  physical  properties  of  clays;  com- 
mercial classification;  composition;  properties;  and  adaptabilities.  The 
clay  industries  of  Connecticut  are  discussed  under  the  following  heads: 
Prospecting;  manufacture  of  brick;  manufacture  of  pottery;  condition 
of    the    clay    industry. 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  47 

191.  Lowrey,  T. 

Water  cement  of  Southington,  Connecticut. 
Am.  Jour.  Sci.,  (i)  xiii,  382-383,  1828. 

Brief  description  of  hydraulic  limestone  2j4  miles  east  of  South- 
ington;  was   used  in   the  construction   of  the   Farmington   canal. 

192.  Lull,  R.  S. 

Fossil  foot-prints  of  the  Jura-Trias  of  North  America. 
Boston  Soc.  Nat.  Hist.,  Alem.,  v,  461-557,  34  figs.,  1904. 

Rev-ievvs  previous  work  upon  fossil  foot-prints,  describes  their  geo- 
logical occurrence,  gives  a  classification  and  systematic  description  of 
genera,   species,  and   higher   groups. 

193.  Lull,  R.  S. 

Fossils   from  the   Connecticut  valley  Triassic. 

Communicated  to  the  author. 

The   following  species  are   recognized   from   Connecticut: 

Batrachopus  deweyanus  E.  H.=:Anisopus  deweyanus  E.  H. ;  B.- 
gracilis  E.  H.:=A.  gracilis  E.  H. ;  Anchisauripus  dananus  (E.  H.)^ 
Brontozoum  sillimaniimi  E.  H.;  A.  tuberosus  (E.  H.)i=B.  validum 
E.  H.;  A.  exsertus  (E.  H.)  =  B.  exsertum  E.  H. ;  A.  minusculus  (E. 
H.);  specimen  described  as  Plesiornis  giganteus  C.  H.  H.;  Grallator 
cuneatus  E.  H. ;  G.  cursorius  E.  H. ;  G.  formosus  E.  H.;  G.  tenuis  E. 
H.;  Anomoepus  curvatus  E.  H. ;  A.  gracillimus  C.  H.  H. ;  A.  intermedius 
E.  H.;  specimens  described  as  Plectropterna  minitans  E.  H.  and  Chi- 
msera  barratti  E.  H.;  Corvipes  lacertoideus  E.  H. ;  Eubrontes  divar- 
icatus  (E.  H.)  zz Brontozoum  divaricatum  E.  H. ;  E.  giganteus  E.  H. — 
B.  giganteum  E.  H. ;  Otozoum  caudatum  C.  H.  H. ;  Otozoum  moodii  E. 
H.;  Argoides  isodactyletus  (E.  H.)^Argozoum  paridigitatum  E.  H.=:?' 
Plesiornis  jequalipes  E.  H. ;  Argoides  macrodactylotus  (E.  H)  —  Argn- 
zoum  disparidigitatum  E.  H. ;  Platypterna  deaniana  E.  H. ;  P.  delicatula 
(E.  H.);  P.  tenuis  E.  H.;  Tarsoplectrus  elegans  (C.  H.  H.)  =Plectrop- 
terna  elegans  C.  H.  H. ;  T.  lineans  (E.  H.)zi:P.  lineans  E.  H. ;  T.  gracilis 
(E.  H.)==P.  gracilis  E.  H.;  Sillimanius  gracilior  E.  H.^Ornithopus 
gracilior  E.  H. ;  S.  tetradactylus  E.  H.zrO.  gallinaceus  E.  H.;  Stereo- 
poides  loripes  (E.  H.)=zTridentipes  insignis  E.  H. ;  ?  Trihamus  elegans- 
E.  H.;  ?  T.  magnus  E.  H. ;  Harpedactylus  sp.;  Ancyropus  heteroclitus 
E.  H. ;  Comptichnus  sp. ;  Cunichnoides  marsupialoideus  E.  H.;  Exocampe 
ornata  E.  H.;  Isocampe  strata  E.  H.;  Palamopus  rogersianus  E.  H.  ^ 
Macropterna  vulgaris  E.  H. ;  Typopus  abnormis  E.  H. ;  T.  gracilis  E. 
H. ;  Trianopus  baileyanus  E.  H.r=T.  leptodactylus  E.  H. ;  Acanthichnus. 
cursorius  E.  H. ;  A.  cursorius  var.  alatus  E.  H.;  A.  cursorius 
var.  trilineans  E.  H. ;  Conopsoides  larvalis  E.  H. ;  Sagittarius 
alternans  E.  H. ;  Unisulcus  marshi  E.  H. ;  U.  minutus  E.  H. ;. 
Bisulcus  undulatus  E.  H. ;  Trisulcus  laqueatus  E.  H.;  Cochlichnus  sp.;. 
Cunicularius   retrahens   E.   H. ;    C.   sp. 

194.  Lyell,  C. 

On  the  fossil  foot-prints  of  birds  and  impressions  of 
raindrops  in  the  valley  of  the  Connecticut. 

Geol.  Soc.  London,  Proc,  iii,  793-796,  1843;  Am.  Jour. 
Sci.,  (i)  xlv,  394-397,  1843- 

The   red   sandstone   at    Rocky    Hill   is   associated    with    red    shale,    and 


48  CONNECTICUT    GEOL.    AND    NAT,    HIST.    SURVEY.        [BuU. 

capped  by  20  feet  of  greenstone;  the  ripple-marked  and  cracked  shale 
shows  drying  and  shrinking  during  deposition;  there  were  eruptions  of 
trap,  accompanied  by  upheaval  and  partial  denudation,  during  the  de- 
position of  the  red  sandstone;  impressions  made  in  the  red  sandstone  by 
some  animal  —  undoubtedly  a  biped  —  resembling  those  which  a  bird 
leaves;  the  position  of  the  sandstone  is  between  the  Carboniferous  and 
Cretaceous.  In  the  neighborhood  of  Durham,  the  author'  collected 
fishes  of  the  genera  Palaeoniscus  and  Catopterus,  but  no  other  organic 
remains  except  fossil  wood. 

195.  Lyman,  B.  S. 

Some  New  Red  horizons. 

Am.  Phil.  Soc,   Proc,  xxxiii,   192-215,   1894.     Abstract: 
Am.    Nat.,    xxviii,   878-879,    1894;     Jour.    Geol.,    ii,    644,    645, 
1894. 

Brief  review  of  Triassic  theories.  Description  of  Pennsylvania,  Vir- 
ginia, Connecticut,  New  Jersey,  and  Massachusetts  areas,  to  show 
that  the  thickness  of  the  formation  has  been  underestimated  (in 
Pennsylvania  should  be  27,000  feet) ;  that  the  trap  outcrops,  both  in  size 
and  extent,  have  been  overestimated;  that  faults  are  not  necessary  for 
production  of  the  topographic  forms;  that  the  formation  may  prove  to  be 
as  old  at  least  as  the  Permian.  Most  of  the  trap  supposed  to  be  ex- 
trusive, even  the  Palisades.  List  given  of  all  the  recorded  New  Red 
fossils  arranged  according  to  horizons. 

(See  critical  review,  by  G.   K.  G.,  Jour.  Geol.,  ii,  644-645.) 

196.  Maclure,  W. 

Observations  on  the  geology  of  the  United  States,  etc. 
(explanatory  of  geological  map). 
Am.  Phil.  Soc,  Trans.,  vi,  411-428,  1809. 

Adopts  the  Wernerian  system,  and  giveS  a  classification  embracing 
all  the  formations.  Remarks  the  continuity  of  the  dolomite,  speaks  of 
cobalt  at  Middletown,  and  discusses  relation  of  rocks  of  eastern  United 
States. 

197.  Maclure,  W. 

Observations  on  the  geology  of  the  United  States  of 
North  America,  with  remarks  on  the  probable  eflfects 
that  may  be  produced  by  the  decomposition  of  the  differ- 
ent classes  of  rocks  on  the  nature  and  fertility  of  soils; 
applied  to  the  different  states  of  the  Union,  agreeably  to 
the  accompanying  geological  map. 

Am.  Phil.  Soc,  Trans.,  (new  series)  i,  1-91,  2  pis.,  i8r8; 
Leonhard's  Zeitsch.,  i,  124-138,  1818. 

Description  of  the  "  Primitive,"  "  Transition,"  "  Secondary,"  and  "  Al- 
luvial "  formations  of  the  United  States,  east  of  the  Mississippi.  Some 
accounts  of  soils  resulting  from  the  decomposition  of  these  rocks.  The 
crystallines  of  Connecticut  are  designated  as  "  Primitive  "  and  the 
Triassic  as  "  Old  Red  sandstone." 

198.  Marcou,  J. 

Geological    map    of    the    United    States,    and    the    British 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  49 

provinces  in   North  America   (with   explanatory  texts   and 
geological  sections).    92  pp.,  8  pis.,  Boston,  1853. 

Facts  regarding  the  Paleozoic  and  Secondary  rocks  of  Connecticut 
are  based  on  the  work  of  Hitchcock  and  Percival.  The  sandstone  is 
considered  the  equivalent  of  the  Keuper  of  the  European  Trias;  the 
trap  is  like  that  in  Auvergne  and  in  Ireland.  Fossils  of  ganoid  fish, 
and  foot-prints  of  birds  are  found.  The  Green  Mountain  system,  the 
"  meridional  system,"  extends  through  Litchfield  and  Fairfield  counties, 
and  terminates  near  Bridgeport;  the  Allegheny  system  is  found  east  of 
New  Haven.  The  sandstone  and  traps  are  of  the  same  age  as  the 
copper-bearing  rocks  of  Lake  Superior.  The  geological  divisions  used 
are  those  of  M.  de  Verneuil,  including  Murchison's  grouping  of  the 
Paleozoic. 

199.  Marcou,  J. 

Resume  explicatif  d'lme  carte  geologique  des  Etats-Unis 
et  des  provinces  anglaises  de  I'Amerique  du  Nord,  avec  un 
profil  geologique  allant  de  la  vallee  du  Mississippi  aux 
cotes  du  Pacifique,  et  une  planche  de  fossiles.  • 

Soc.  geol.  France,  Bull.,  (2)  xii,  813-936,  map,  pi.,  1854- 
55.  Abstract:  Petermann,  IMittheil,  i,  149-159,  map,  1855. 
Reviewed  and  errors  enumerated:  Am.  Jour.  Sci.,  (2) 
xvii,  198-206,  1854. 

Between  Carboniferous  and  Jurassic  is  a  series  of  red  sandstones 
and  shales  containing  few  fossils;  age  of  these  deposits  not  Old  Red 
sandstone  as  stated  by  some  geologists,  nor  Oolite  nor  Lias  as  contended 
by  James  Hall.  The  New  Red  sandstone  of  United  States  divided  into 
four  series,  of  which  Connecticut  rocks  are  the  highest.  49  species  of 
fossil  foot-prints  have  been  described,  also  three  ganoids.  Cupriferous 
trap  rock,  contemporaneous  with  the  sandstones,  broke  through  fissures, 
lifted  and  metamorphosed  the  sandstones,  and  spread  out  in  places 
like  lava  flows. 

200.  Marcou,  J. 

Geology  of  North  America,  with  two  reports  on  the 
prairies  of  Arkansas  and  Texas,  the  Rocky,  mountains  of 
New  Mexico,  and  the  Sierra  Nevada  of  California.  144 
pp.,  7  pis.,  3  maps,  4°,  Zurich,  1858. 

Connecticut  valley  contains  New  Red  sandstone;  crystalline  and 
metamorphic  rocks  underlie  the  remainder  of  the  state.  Litchfield  and 
Fairfield  are  parts  of  the  Green  mountain  system.  "  Alleghenian  dislo- 
cations continue  into  Connecticut  to  the  eastward  of  New  Haven."  The 
report  contains  chapters  on  classification  of  mountains,  progress  and 
discoveries  of  geology  of  North  America,  and  bibliography  of  maps  and 
memoirs. 

(This  report  is  not  considered  trustworthy,  and  was  severely  criti- 
cised at  the  time  of  its  appearance  by  Hall,  Whitney,  Blake,  Dana,  and 
others. —  Ed.) 

201.  Markham^  F.  G. 

Volcanic  and  seismic  disturbances  in  southern  Connecti- 
cut. 

Connecticut  Mag.,  ix,  68-74,  5  figs.,   1905. 


50  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

Deals  in  a  popular  way  with  the  well-known  evidences  of  volcanic 
activity  in  the  New  Haven  and  Meriden  regions,  and  with  the  "  Aloodus 
noises,"  which  the  author  ascribes  to  explosions  of  steam. 

202.  Marsh,  O.  C. 

Notice  of  new  American  Dinosauria. 
Am.  Jour.  Sci.,  (3)  xxxvii,  33^-336,  5  figs.,  1889. 
Description    of    Anchisaurus    major,    sp.    nov.,    a    small    carnivorous 
dinosaur  found  near  Manchester,  in   18S4. 

203.  Marsh,  O.  C. 

Notice  of  new  vertebrate  fossils. 
Am.  Jour.  Sci.,  (3)  xlii,  265-269,  1891. 

Announces  discovery  and  gives  description  of  Ammosaurus,  gen.  nov., 
and  Anchisaurus  colurus,   sp.    nov.,    from   Manchester. 

204.  Marsh,  O.  C. 

Notes  on  Triassic  Dinosauria. 
Am.  Jour.   Sci.,   (3)   xliii,  543-546,  3  pis.,   1892. 
Description  of  parts  of  Anchisaurus  solus  and  A.  colurus,   and  a  dis- 
cussion  of   their  affinities. 

205.  Marsh,  O.  C. 

Restoration  of  Anchisaurus. 

Am.  Jour.  Sci.,  (3)  xlv,  169-170,  i  pL,  1893. 

The  skeleton  of  the  dinosaur  found  at  Manchester  was  sufficiently  com- 
plete to  permit  of  restoration,  and  shows  a  slender,  delicate  dinosaur, 
which  left  foot-prints  like  the  so-called  "  bird-tracks."  No  tracks  of 
true  birds  are  known   in  this  horizon. 

206.  Marsh,  O.  C. 

The  Dinosaurs  of  North  America. 

U.  S.  Geol.  Surv.,  i6th  Ann.  Rept.,  pt.  i,  135-244,  65 
pis.,  66  figs.,  1896. 

Describes  Anchisaurus  colurus,  .Anchisaurus  solus,  Ammosaurus  major, 
from  Manchester.  Ammosaurus  major  was  previously  described  as 
Anchisaurus   major. 

207.  Marsh,  O.  C. 

A  new  belodont  reptile  (Stegomus)  from  the  Connecti- 
cut river  sandstone. 

Am.  Jour.  Sci.,  (4)  ii,  59-62,  3  figs.,  i  pi.,  1896. 

Announces  discovery  of,  and  describes  remains  of,  Stegomus  arcuatus 
from   New  Haven. 

208.  Marsh,  Othniel  Charles    (1831-1899). 

Biography. 

Beecher:  Am.  Geol.,  xxiv,  135-137,  1899. 

Beecher :   Am  Jour.  Sci.,  (4)  vii,  403-428,  1899. 

Bidwell:  Eclectic  Mag.,  501,  502,  1878. 

Grinnell:  Pop.  Sci.  Mon.,  612-617,  1878. 

Woodward:  Geol.  Mag.,  (new  ser.)  vi,  237-240,  1899. 


No.    8.J         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  5I 

209.  Mather,  W.  W. 

Illustrations  of  a  section  through  a  part  of  Connecticut, 
from  Killingly  to  Haddam  on  the  Connecticut  river. 
Am.  Jour.  Sci.,   (i)  xxi,  94-97,   1832. 

Description  and  general  relations  of  the  following:  granular  feld- 
spar rock  and  its  passage  into  kaolin;  granular  quartz  rock;  gneiss  in 
thick  strata;  contorted  gneiss;  gneiss  traversed  with  veins  of  granite; 
mica   slate;   syenitic   and   hornblende   rocks. 

210.  Mather,  W.  W. 

A  geological  map  of  New  London  and  Windham  coun- 
ties. 

Am.  Jour.  Sci.,  (i)  xxiii,  404,  1833. 

Notice  of  map  based  on  geological  data  of  Mather  to  be  published  by 
William  Lester,  Jr. 

211.  Mather,  W.  W. 

Sketch  of  the  geology  and  mineralogy  of  New  London 
and  Windham  counties  in  Connecticut.  36  pp.,  map,  Nor- 
wich, 1834. 

A  detailed  study  of  the  geology  of  New  London  and  Windham 
counties.  The  formations  recognized  are:  i.  Gneiss;  2.  hornblende 
slate;  3.  mica  slate;  4.  granular  feldspar;  5.  granular  quartz;  6. 
sienite;  7.  granite;  8.  limestone;  9.  tertiary;  10.  diluvial;  11.  alluvial. 
Each  of  these  groups  is  discussed  under  the  following  heads:  (a) 
Chemical  and  external  character;  (b)  range  and  extent;  (c)  elevation 
and  general  character  of  hills;  (d)  inclination  and  thickness  of  the 
rocks  and  veins;  (e)  water  and  springs;  (f)  agricultural  character;  (g) 
mineral  contents;  (h)  application  to  useful  purposes.  Primitive  and 
Tertiary   formations   are   present,   but   no    Secondary. 

212.  Mather,  W.  W. 

Fossil  fishes  in   Connecticut  sandstone. 
Neues  Jahrb.,  531-532,  1834. 

Specimens  of  fish  turned  to  bituminous  coal,  but  with  scales  per- 
fectly preserved,  are  found  twenty  miles  from  New  Haven;  they  oc- 
cur  in  bituminous   shale,   "  red   marl,"   and  sandstone. 

213.  Mather,  W.  W. 

Geology  of  New  York,  Part  I  (first  report  on  south- 
eastern district),  xxxvii  +  671  pp.,  46  pis.,  4°,  Albany,   1843. 

Glacial  stri^e  and  till  are  noted  as  occurring  in  Connecticut,  and  the 
origin  of  the  drift  deposits  is  discussed.  The  traps  and  sandstone  of 
Connecticut  and  New  York  are  of  the  same  age;  the  dip  of  the  sand- 
stone is  due  to  the  original  deposition  by  equatorial  and  polar  currents. 
Identical  Cambro-Silurian  metamorphic  rocks  occur  in  western  Con- 
necticut and  eastern  New  York. 

214.  Mather,  William  Williams.     (1804-1859.) 

Biography. 

Am.  Jour.   Sci.,   (2)  xxvii,  452,   :p859. 


52  CONNECTICUT    GBOL.    AND    NAT.    HIST.    SURVEY.       [BuU. 

215.  Matthew,  W.  D. 

Monazite  and  orthoclase,  from  South  Lyme,  Connecticut. 
Sch.  Mines  Quart.,  xvi,  231-233,  1895. 
Detailed  description  of  a  large  crystal  of  monazite. 

216.  Mease,  J. 

A  geological  account  of  the  United  States,  comprehend- 
ing a  short  description  of  their  animal,  vegetable,  and 
mineral  productions,  antiquities,  and  curiosities,  iii  + 
496  +  xiv  pp.,  Philadelphia,  1807. 

The  geological  portion  comprises  55  pages,  25  of  which  are  devoted 
to  a  catalogue  of  minerals. 

Contains   exaggerated   descriptions  of   Connecticut   scenery. 

217.  Merrill,  G.  P. 

Report  on  building  stone  of  the  United  States  and  statis- 
tics of  quarry  industry  for  1880. 

Census  of  U.  S.,  loth  Rept.,  x,  15-29,  1880. 

Description  of  microscopic  structure  and  mineral  composition  of 
some  of  the  more  common  kinds  of  building  stones.  The  Connecticut 
specimens  described  are  hornblende-biotite  gneiss  from  Middletown  and 
sandstone  from  Portland. 

218.  Merrill,  G.  P. 

The  collection  of  building  and  ornamental  stones  in  the 
United  States  National  Museum. 

Smithson.    Rept.,  pt.  ii,  277-648,  9  pis.,  1886. 

General  description  of  the  minerals  of  building  stones;  physical  and 
chemical  properties  of  rocks;  classification  of  rocks;  quarrying; 
weathering  and  selection  of  building  stones.  Rocks  described  as  oc- 
curring in  Connecticut  are  serpentine,  limestone,  dolomite,  marble, 
granite,  diabase,  sandstone. 

219.  Miller,  S.  A. 

North  American  IMesozoic  and  Cenozoic  geology  and 
paleontology. 

Cincinnati  Soc.  Nat.  Hist,  Jour.,  ii,  140-161,  223-244, 
1879;  iii,  9-32,  79-118,  165-202,  245-288,  1880;  iv,  3-46,  93-144, 
183-234,  1881;  also  issued  separately.  338  pp.  Cincinnati, 
1881. 

Contains  a  compilation  of  data  regarding  composition,  structure, 
origin,  and  fossil  contents  of  the  Triassic  rocks  of  Connecticut. 

220.  Newberry,  J.  S. 

Report  on  building  stones  of  the  United  States,  and  sta- 
tistics of  the  quarry  industry. 

Census  of  U.  S.,  loth  Rept.,  x,  318-324,  1884. 

Limestone  of  Greenwich  mentioned  as  building  stone  (was  used  in 
the  construction  of  a  portion  of  the  wall  in  Central  Park).  Thomaston 
granite  well  adapted  to  monumental  work;  Millstone  point  granite, 
fine,  dark  gray;  that  of  Leete  Island,  reddish  gray,  rather  coarse-grained 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  53 

gneiss;  that  of  Stony  Creek,  pale  red  in  color,  medium  grain,  a  strong, 
compact,  handsome  stone.  Short  description  also  of  granite  at 
Winnepauk,  Norwalk,  and  red  granite  at  Lyme,  also  that  at  Niantic. 
Marble  of  Canaan  is  mentioned. 

221.  Newberry,  J.  S. 

Fossil  fishes  and  fossil  plants  of  the  Triassic  rocks  of 
New  Jersey  and  the  Connecticut  valley. 

U.  S.  Geol.  Surv.,  Mon.  xiv,  122  pp.,  26  pis.,  1888.  Ab- 
stracts: New  York  Acad.  Sci.,  Trans.,  vi,  124,  128,  1887; 
Am.  Jour.  Sci.,  (3)  xxxviii,  77-78,  1889;  Am.  Nat.,  xxii, 
639,  1888;  Am.  Geol.,  iv,  187-188,  1889;  Pop.  Sci.  Mon., 
xxxvi,  562-563,  1889. 

Short  sketch  of  the  geological  relations  of  the  Triassic  rocks  of 
New  Jersey  and  the  Connecticut  valley.  Description  of  the  following 
fossil  fishes  found  in  Connecticut:  Ischypterus  ovatus,  W.  C.  R.; 
Ischypterus  micropterus,  n.  sp. ;  Ischypterus  tenuiceps,  Ag.  sp. ;  Ischyp- 
terus fultus,  Ag.  sp. ;  Ischypterus  parvus,  W.  C.  R.  (MS);  Ischypterus 
latus,  J.  H.  R.;  Ischypterus  minutus,  n.  sp. ;  Catopterus  redfieldi,  Eg- 
erton;  Catopterus  gracilis,  J.  H.  R. ;  Catopterus  minor,  n.  sp. ;  Catop- 
terus anguilliformis,  W.  C.  R.;  Catopterus  parvulus,  W.  C.  R.; 
Ptycholepis  Marshi.,  Newb. ;  Diplurus  longicaudatus,  Newb.  Descrip- 
tion of  the  following  fossil  plants  found  in  Connecticut;  Dendrophycus 
Triassicus,  n.  sp. ;  Baiera  mtinsteriana,  Ung. ;  Schizoneura  planicostata, 
Rogers  sp. ;  Pachyphyllum  simile,  n.  sp. ;  Pachyphyllum  brevifolium,  n. 
sp. ;  Otozamites  latior,  Saporta;  Cheirolepis  miinsteri,  Schimper;  Oto- 
zamites  brevifolius  F.  Br.;  Cycadinocarpus  chapini  Newb.;  Loperia  sim- 
plex,  n.   sp. ;    Clathropteris   platyphylla   Brong. 

222.  Newberry,  John  Strong.     (1822-1892.) 

Biography. 

Kemp:  Geol.  Soc.  America,  Bull.,  iv,  393-409,  1892. 
Kemp:  Sch.  Mines  Quart.,  94-1 11,  Jan.,  1893. 
Stevenson:  Am.  Geol.,  xii,  1-26,  1893. 

223.  [Newell,  F.  H.]  U.  S.  Geological  Survey. 

The  Connecticut  river. 

U.  S.  Geol.  Surv.,  14th  Ann.  Rept.,  pt.  ii,  140-146,  1893. 

Tables  are  given  showing  discharge,  rainfall,  run-off  at  Hartford 
for  years  1871-1885;  based  on  observations  made  by  United  States 
Army   Corps  of  Engineers. 

224.  [Newell,  F.  H.]  U.  S.  Geological  Survey. 

Connecticut  river:     A  study  of  the  discharge  and  run-off 
of  the  river  at  Holyoke,  Massachusetts,  1880-1895. 
U.  S.  Geol.  Surv.,  Bull.  No.  140,  37-41,  1896. 

(This  is  to  be  compared  with  the  report  on  the  Connecticut  river  at 
Hartford,   223.— Ed.) 

225.  Niles,  W.  H. 

The  geological  agency  of  lateral  pressure  exhibited  by 
certain  movements  of  rocks. 


54  CONNECTICUT    GEOL.    AND    NAT,    HIST.    SURVEY.        [Bull. 

Boston  Soc.  Nat.  Hist.,  Proc,  xviii,  272-284,  1876.  Ab- 
stract: Am.  Nat.,  x,  127,  1876. 

Evidence  obtained  from  various  quarries  showing  that  rocks  are  in 
a  state  of  tension  or  compression.  Shown  by  bulgings,  crushings,  and 
explosions  when  rock  is  removed  from  the  quarries.  Due  to  lateral 
pressure  occasioned  by  the  contraction  of  the  globe.  A  general  phe- 
nomenon. Among  other  localities  observed  were  those  of  Waterford 
and  Groton.     (See  Johnston,   174.) 

226.  Norton,  H. 

Glacier   scratches   in   Goshen,  in  northern   Connecticut. 
Am.  Jour.  Sci.,   (3)  xxii,  322,  1881. 

Citation  of  observations  of  location  and  direction  of  five  glacial 
striae  in  Goshen,  Connecticut,  as  follows:  S4i°E;  S77°E;  S38°E; 
S22^°E;  S58°E. 

227.  Peet,  C.  E. 

Glacial    and    post-Glacial    history    of    the    Hudson    and 
Chaniplain  valleys. 
Jour.  Geol.,  xii,  415-469,  617-660,  27  maps  and  figs.,  1904. 

The  relation  of  the  Hudson  water  body  to  that  of  the  Connecticut 
valley   is   briefly   discussed. 

228.  Percival,  J.  G. 

Notice  of  the  locality  of  sulphate  of  barytes,  from 
which  a  specimen  was  analyzed  by  Mr.  G.  T.  Bowen,  and 
of  various  other  mineral  localities  in  Berlin,   Connecticut. 

Am.  Jour.  Sci.,  (i)  v,  42-45,  map,  1882. 

The  sulphate  of  barytes  is  found  in  a  vein  in  a  ridge  of  greenstone 
within  the  red  sandstone  formation,  about  one-half  mile  west  of 
Kensington  meeting  house,  in  Berlin.  Mentions  a  coal  mine  (in  green- 
stone only),  lead  mine,  pyrites,  carbonate  of  lime,  quartz,  chalcedony, 
agate,  porous  greenstone  containing  zeolites   and  chlorite  crystals. 

229.  Percival,  J.  G. 

Report  on  the  geology  of  the  state  of  Connecticut.  486 
pp.,  with  map,  published  under  the  direction  of  the  Com- 
missioners appointed  by  the  State,  1842. 

The  geology  of  Connecticut  is  discussed  under  the  following  heads: 
Rocks,  10-452;  unconsolidated  materials,  453-467;  soils,  467-470;  eco- 
nomic results,  470-475;  physical  geography,  475-486.  The  rocks  are 
grouped  as  Primary  system,  11-298,  divided  into  the  western  Primary 
system  with  16  rock  formations,  and  the  eastern  Primary  system  with 
5  formations  and  numerous  subdivisions;  trap  rocks,  299-426;  the  Sec- 
ondary rocks,  426-452.  The  rocks  and  formations  are  described  in  detail, 
as  regards  their  "  mineral  composition,  structure,  and  physical  charac- 
ter." The  characters  of  the  unstratified  "  Diluvium  "  and  the  stratified 
"  Alluvium  "  are  described  at  many  localities. 

(Percival's  report  is  a  remarkable  piece  of  work.  The  difficulties 
under  which  it  was  undertaken,  and  the  care  with  which  it  was  done  are 
explained  in  the  bulletin  accompanying  the  Preliminary  Geological  Map 
of  Connecticut.     The   rock  types  and  localities   are   described   accurately. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  55 

the  igneous  origin  of  the  traps  is  stated,  and  the  fact  of  transportation 
of  bowlders  and  the  direction  of  their  course  is  noted.  The  author 
described  what  he  saw,  and  the  book  is  a  mass  of  geological  detail. 
With  this  abundance  of  facts,  however,  there  is  an  absence  of  general- 
izations or  of  an  attempt  to  interpret  the  phenomena  observed,  and  the 
report  is  therefore  of  little  value  to  the  reader  who  wishes  to  under- 
stand the  geological  history  of  Connecticut. —  Ed.) 

230.  Percival,  James   Gates,     (i 795-1856.) 

Biography. 

Shepard:  Atlantic  Mon.,  iv,  59-73,  1859. 

Ward:  Life  and  Letters  of  James  Gates  Percival.  579 
pp.,  1866. 

Pettee :    Meriden  Sci.  Assoc,  Trans.,  iv,  22-28,  1890. 

Cogswell :  Percival  and  his  friends.  Am.  Jour.  Sci.,  (2) 
xxii,  ISO-I5I,  1856. 

Geol.  Surv.  Wisconsin,  preface,  1856. 

231.  Perry,  J.  B. 

Hints  toward  the  post-Tertiary  history  of  New  England 
from  personal  study  of  rocks,  with  strictures  on  Dana's  "  Geol- 
ogy of  the  New  Haven  region." 

Boston  Soc.  Nat.  Hist.,  Proc,  xv,  48-148,  1873. 

Discussion  of  the  non-adaptability  of  the  iceberg  theory  to  .ac- 
count for  all  the  drift  phenomena.  Detailed  treatment  of  the  glacier 
theory  and  its  general  application  to  the  post-Tertiary  history  of  New 
England.  Discussion  of  the  marl  and  peat  periods  of  post-Pliocene 
time.  Criticism  from  time  to  time  of  Prof.  Dana's  article,  "  Geology  of 
the   New  Haven  Region." 

232.  Petros  (C.  A.  Lee). 

The  moving  rocks  of  Salisbury. 

Am.  Jour.  Sci.,  (i)  v,  34-36,  map,  1822. 

Northeast  pond  and  Little  pond,  now  separated  by  a  narrow  strip  of 
limestone  bowlders,  were  formerly  one  water  body.  Carrying  of  rocks 
shoreward  by  the  ice  has  built  this  barrier.  Between  September,  18:9, 
and  February,  1821,  a  rock  weighing  forty  tons  was  moved  shoreward 
3   rods,   2   links,   leaving  a   trench   behind. 

(This  is  one  of  the  first  quantitative  statements  of  the  importance 
of  lake  ice  in  transporting  material. — -Ed.) 

233.  Pierce,  J. 

Chalybeate  spring  at  Litchfield. 

Am.  Jour.  Sci.,  (i)  iii,  235,  236,  1821. 

An  account  of  a  "  copious  and  perennial  spring  issuing  from  an  ex- 
tensive bed  of  sulphuret  of  iron,"  situated  on  the  eastern  side  of  Mount 
Prospect;  exhibits  in  its  course  much  oxide  of  iron,  ochre,  and  a 
white  deposit. 

234.  Porter,  T.  D. 

Floetz  trap  formation  in  Connecticut  and  Massachu- 
setts. 

Am.  Jour.  Sci.,   (i)   iv.,  241-242,   1822. 


56  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

Brief  description  of  the  trap  formation  in  New  Haven  and  vicinity, 
mentioning  their  inclusions:  zeolites,  quartz,  prehnite,  etc.  Slight  dif- 
ference between  East  and  West  Rocks  and  those  in  the  region  of  East 
Haven;   i.  e.,  no   regular  jointed  structure  in  latter. 

235.  Putnam,  B.  T. 

Notes  on  samples  of  iron  ore  collected  in  Connecticut. 
Census  of  the  U.  S.,  loth  Rept.,  xv,  83-87,  map,  1886. 

Magnetic  ore  not  found  in  the  state  in  sufficient  quantities  to  pay  for 
mining;  specular  hematite  is  almost  unknown;  spathic  ore  exists  in  the 
vicinity  of  Roxbury,  but  is  not  mined;  limonite  the  only  ore  mined.  De- 
scription of  the  Kent  mine,  the  Chatfield  mine  near  Salisbury,  the 
Brookpit  or  Ore  Hill  mine,  the  Porter  mine  at  Lakeville,  the  Davis  or 
Forbes  mine  north  of  Lakeville,  and  the  Chapin  mine  west  of  Chapinville. 
Map  showing  location  of  iron  mines  accompanies  these  notes;  sketch 
of  the  Chatfield  mine. 

236.  Pynchon,  W.  H.  C. 

The  ancient  lavas  of  Connecticut. 

Connecticut  Quart.,  ii,  309-319,  17  reproductions  from 
photographs,  1896. 

Well  illustrated,  popular  account  of  the  trap  ridges  from  Tariffville 
to  New  Haven. 

237.  Pynchon,  W.  H.  C. 

Some  common  evidences  of  glacial  action  in  Connecti- 
cut. 

Connecticut  Quart.,  iv,  294-302,  10  illus.,  1898. 

A  popular  article  on  glacial  action  with  illustrations  taken  from 
Connecticut.  Views  show  striated  rock,  till,  perched  bowlder,  sand 
plain,   etc. 

238.  Pynchon,  W.  H.  C. 

Iron  mining  in  Connecticut. 

Connecticut  Quart.,  v.  —  I.  Ores  and  ore  beds,  20-26,  4 
illus;  II.  Smelting,  232-238,  8  illus.;  III.  Historical 
sketch,  277-285,  9  illus.;  1899. 

An  account  of  all  the  mines  within  the  state.  Character  of  the 
ores,  methods  of  mining  and  smelting.  An  interesting  description  of 
the  great  importance  of  the  industry  during  the  revolutionary  period, 
its  decline  and  present  condition.  The  Salisbury-Canaan  region,  with  its 
mines,  is  described  and  illustrated  in  detail. 

239.  Pynchon,  W.  H.  C. 

Drilled  wells  of  the  Triassic  area  of  the  Connecticut  val- 
ley. 

U.  S.  Geol.  Surv.,  Water-Supp.  and  Irr.  Paper  No.  no, 
pp.  65-94,  with  sketch  map  and  section,   1905. 

A  sketch  of  the  principal  geological  features  of  the  area,  followed  by 
descriptions  of  a  considerable  number  of  wells,  in  which  several  points 
of  interest  are  emphasized;  the  high  percentage  of  mineral  matter  pres- 
ent in  all  the  water,  the  general  absence  of  flowing  wells. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  5/ 

240.  Rafter,  G.  W. 

Sewage  irrigation. 

U.  S.  Geol.  Surv.,  Water-Supp.  and  Irr.  Paper  No.  22, 
89  pp.,  1899. 

Sewage  conditions  at  Bristol,  Danbury,  Lake  Wauramaug,  Litchfield, 
Meriden,  and  Waterbury;  gives  population,  filterage,  and  drainage 
as   found   in  these  places. 

241.  Rice,  W.  N. 

On  the  trap  and  sandstone  in  the  gorge  of  the  Farming- 
ton  river  at  Tarififville,  Connecticut. 

Am.  Jour.  Sci.,   (3)   xxxii,  430-433,   1886. 

Description  of  the  relations  existing  between  the  trap  and  sand- 
stone in  the  gorge,  preving  that  the  lower  sheet  of  trap  is  con- 
temporaneous. 

242.  Rice,  W.  N. 

First  biennial  report  of  the  commissioners  of  the  State 
Geological  and  Natural  History  Survey.  18  pp.,  Hartford, 
Connecticut,  1904. 

The  act  establishing  the  state  geological  and  natural  history  survey 
was  passed  June  3d,  1903.  The  commissioners  met  on  June  25th, 
1903,  and  appointed  William  North  Rice  superintendent.  The  work 
undertaken  during  the  first  year  includes  a  manual  of  geology,  a 
geological  map,  and  an  investigation  of  the  clays. 

243.  Rice,  W.  N.  , 

The  physical  geography  and  geology  of  Connecticut. 
Connecticut  Board  of  Agric,  Rept.,  74-112,  2  maps,  1904. 

A  general  sketch  of  the  geology  and  geography  of  Connecticut,  show- 
ing three  physiographic  divisions.  The  method  of  formation  of  the 
different  rocks  is  outlined,  as  is  also  the  geological  history. 

243a.     Rice,  W.  N.,  and  Gregory,  H.  E. 

Manual  of  Connecticut  geology. 

Connecticut  State  Geol.  Nat.  Hist.  Surv.,  Bull.  No.  6, 
259  PP-,  31  pis.,  22  figs.,  1906. 

This  report  is  divided  into  four  parts:  i.  Geography  of  Connecticut 
as  related  to  geological  structure  and  history;  2.  The  Crystalline  Rocks, 
including  a  discussion  of  their  composition  and  structure  and  also  a 
description  of  the  different  rock  formations  of  the  western  and  eastern 
Highlands;  3.  The  Triassic,  including  sedimentary  rocks  and  the  traps; 
4.  Glacial  Geology.  The  manual  is  "  an  outline  of  what  is  known  in 
regard  to  the  geological   structure  and   history  of  Connecticut." 

244.  Ries,  H. 

The  limestone  quarries  of  eastern  New  York,  western 
Vermont,   Massachusetts,   and   Connecticut. 

U.  S.  Geo.  Surv.,  17th  Ann.  Rept.,  pt.  iii  (cont.),  795- 
811,  1896. 

Description  of  localities  and  character  of  the  limestones,  in- 
cluding the  Stockbridge  limestone,  quarried  at  Canaan,  and  used  for 
making  lime.      Chemical  analyses  are   given. 


58  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.       [BuU. 

245.  Ries,  H. 

Clays  of  the  United  States,  east  of  the  Mississippi  river. 

U.  S.  Geol.  Surv.,  Prof.  Paper  No.  11,  1-287,  1903. 

Clays  of  Connecticut,  and  analysis  of  kaolin  found  at  West  Cornwall; 
clay-working  industry  around  Berlin,  Hartford,  New  Haven,  and  Mid- 
dletown;  value  of  clay  products  in  the  State. 

245a.     Robinson,  H.  H.,  and  Gregory,  H.  E. 

Preliininary  geological  map  of  Connecticut. 
Connecticut   State   Geol.   Nat.    Hist.   Surv.,    Bull.   No.   7, 
39  pp.,  I  fig.,  together  with  a  geological  map,  1906. 

(See    Gregory   and    Robinson,    124c.) 

246.  Rogers,  H.  D. 

Nature  of  the  dip  of  the  Triassic  of  the  eastern  United 
States. 

Am.  Jour.  Sci.,  (r)  xliii,  170-171,  1842;  Assoc.  Am.  Geol., 
Trans.,  63-64,   1843. 

Brief  statement  to  the  effect  that  the  dip  of  the  Connecticut  sandstone 
is  the  result  of  oblique  deposition.  This  objected  to  by  Lyell  and 
Silliman.     The  latter  mentions  upheaval  as  the  cause. 

247.  Rogers,  H.  D. 

Cause  of  crescent-formed  dikes  of  trap  in  New  Jersey 
and  Connecticut. 

Am.  Jour.  Sci.,  (i)  xlv,  334,  1843. 

Brief  statement  that  the  crescent  form  of  the  trap  dikes  is  in 
some  manner  connected  with  the  dip  of  the  stratified  rocks  which 
they   traverse. 

248.  Rogers,  H.  D.  ^ 

Sketch  of  the  geology  of  the  United   States. 
Geol.  Pennsylvania,  ii,  741-775,  Philadelphia,   1858. 
The  geology  of  New  England  and  of  the  Connecticut  valley  is  briefly 
compared   with   that  of  other  regions. 

249.  Russell,  I.  C. 

On    the    physical    history   of   the    Triassic    formation    in 
New  Jersey  and  in  the  Connecticut  valley. 
New  York  Acad.   Sci.,  Ann.,   i,  220-254,   1879. 

Description  of  the  Triassic  areas  of  eastern  United  States,  par- 
ticularly those  in  New  Jersey  and  Connecticut.  Conclusions:  i.  The 
Triassic  beds  are  the  borders  of  one  great  estuary  deposit,  the  central 
part  of  which  was  slowly  upheaved  and  then  removed  by  denudation;  2. 
The  outbursts  of  trap  must  have  occurred  after  the  sedimentary  beds 
had  been  upheaved  and  eroded;  3.  The  detached  areas  of  Triassic  rock 
occvirring  along  the  Atlantic  border  from  New  England  to  North  Caro- 
lina seem  fragments  of  one  great  estuary  formation,  now  broken 
up  and  separated  through  the  agency  of  upheaval  and  denudation.  (See 
Dana,  46.) 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  59 

250.     Russell,  I.  C. 

On  the  occurrence  of  a  solid  hydrocarbon  in  the  eruptive 
rocks  of  New  Jersey. 

Am.  Jour.  Sci.,   (3)   xvi,   11 2- 114,   1878. 

Description  of  brilliant  jet  black  carbonaceous  mineral  resembling 
albertite,  in  the  cavities  of  amygdaloid  trap:  comparison  with  a  similar 
mineral  described  by  Percival  as  occurring  in  the  trap  areas  of  Con- 
necticut.     (See  Dana,  44.) 

■251.     Russell,  I.  C. 

On  the  former  extent  of  the  Triassic  formation  in  the 
United  States. 

Am.  Nat.,  xiv,  703-712,  1880. 

The  detached  areas  of  Triassic  rocks,  from  South  Carolina  north- 
ward to  Connecticut  and  Massachusetts,  are  portions  of  the  one  great  es- 
tuary deposit,  which  has  been  broken  up  into  separate  areas  by  up- 
heaval and  denudation. 

252.     Russell,  I.  C. 

Subaerial  decay  of  rocks,  and  origin  of  red  color  of  cer- 
tain formations. 

U.  S.  Geol.  Surv.,  Bull.  No.  52,  1-56,  5  pis.,  1889. 

Red  color  of  Connecticut  sandstones  due  to  coating  of  quartz  grains 
with  ferric  oxide  in  residual  clay.  Sandstones  were  "  formed  from 
debris  of  lands  that  had  been  long  exposed  to  the  action  of  a  warm, 
moist  atmosphere."     (See   Dana,   68.) 

^53.     Russell,  I.  C. 

The    Newark   system. 

U.  S.  Geol.  Surv.,  Bull.  No.  85,  340  pp.,  4  figs.,  13  pis., 
1892. 

Summarizes  existing  knowledge  regarding  Triassic  rocks  (Newark 
System)  of  Connecticut  and  other  eastern  states.  The  Connecticut 
valley  and  Southbury  areas  are  mapped  and  described.  Rocks  were  de- 
posited in  tide-swept  estuaries  during  a  period  of  mild  climate.  A  list 
of  fossils  is  given.  Igneous  rocks  associated  with  sediments  are  dikes, 
intrusive  sheets,  and  lava  flows.  The  structure  of  the  area  is  mono- 
clinal,  and  is  controlled  by  "  faults  of  all  degrees  of  displacement  up 
to  many  hundreds  of  feet,"  as  shown  by  Davis.  "  Each  of  the  Newark 
areas  [along  the  Atlantic  border]  was  originally  much  larger  than 
now,  and  there  is  a  strong  probability  that  all  the  areas  between  Massa- 
chusetts and  South  Carolina  were  originally  united."  Newark  system  is 
in  upper  part  Jurassic  and  lower  part  Triassic.  The  "  Index  to  the 
literature  of  the  Newark  system"    (133-339)   is  very  complete. 

^54.     Seeley,   L. 

Garnet  Rock. 

Am.  Jour.  Sci.,   (i)    iii,  241-242,    1821. 

A  rock  in  Redding  abundantly  studded  with  garnets  of  various  sizes 
and   qualities. 


6o  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.       [Bull. 

255.  Shaler,  N.  S. 

Fluviatile  swamps  of  New  England. 

Am.  Jour.  Sci.,  (3)  xxxiii,  210-221,  1887.  Abstract:  Pop. 
Sci.  Mon.,  xxxiii,  142,  143,  1887. 

Discussion  of  differences  between  rivers  flowing  from  north  to 
south,  and  those  flowing  from  south  to  north.  The  former  have  ter- 
races and  no  swamps;  the  latter  have  no  terraces  and  numerous 
swamps;  caused  probably  by  a  depression  of  land  at  south,  thus  lower- 
ing the   grade   of   north-flowing   streams. 

(No  reference  to  individual  Connecticut  streams. —  Ed.) 

256.  Sheldon,  J.  M.  A. 

Concretions  from  the  Champlain  clays  of  the  Connecti- 
cut valley.  42  pp.,  123  figs,  of  nearly  natural  size,  illus- 
trating the  "  Stone-Arms  Collection."  A  bibliography  re- 
lating to  works  on  concretions  is  also  given.  Boston, 
1900. 

Concretions  are  described  from  the  Connecticut  valley,  including 
Hartford  and  Windsor,  Connecticut;  they  are  formed  in  the  clay  by 
robbing  the  clay  of  its  lime.  Analysis  shows  concretions  to  be  about 
one-half  clay  or  sand.  The  process  by  which  concretions  are  formed 
is   discussed,    also   the   factors    which    determine   their   shape. 

257.  Shepard,  C.  U. 

Notice   of  a   mine   of   spathic   iron    (steel   ore)    of   New 
Milford,  and  of  iron  works  of  Salisbury,  Connecticut. 
Am.  Jour.   Sci.,   (i)   xix,  311-326,   1831. 

History  of  the  New  Milford  mine,  which  at  first  was  worked  for 
silver;  geology  of  the  region  —  the  iron  and  quartz  exist  together 
as  a  seam  6-8  feet  wide  in  the  gneiss;  description  of  the  ore;  Salisbury 
iron  works  —  occurrence  of  the  ore,  theory  of  its  origin,  history  of  the 
opening  of  the  ore,   annual  yield,  etc. 

258.  Shepard,  C.  U. 

A  report  on  the  geological  survey  of  Connecticut,  186 
pp.,  published  by  the  State,  New  Haven,   1837. 

This  report  consists  of  three  parts:  i.  Aa  economical  report,  in 
which  the  mineral  resources  of  the  state  are  described  under  the  fol- 
lowing heads:  —  metals;  coal;  plumbago;  gems;  polishing  and  grinding 
materials;  soapstone  and  potstone;  materials  for  alkaline  and  earthy 
salts;  material  for  bricks,  pottery,  porcelain,  and  glass;  fire  stone; 
fluxes;  quicklime  and  water  cement;  stove  paints;  decolorizing  car- 
bonaceous slate;  material  for  architecture  and  decoration;  material  for 
flagging,  tiling  and  paving;  material  for  agriculture;  mineral  springs. 
2.  Scientific  report,  in  which  the  minerals  and  ores  occurring  in  Con- 
necticut are  described  and  classified.  3.  A  catalogue  of  the  collections, 
containing  595   specimens. 

259.  Shepard,  Charles  Upham. 

Biography. 

Am.  Jour.   Sci..   ( t,)   xxxi,  482,  483,   1886. 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  6l 

260.  Silliman,  B. 

Sketch  of  the  mineralogy  of  the  town  of  New  Haven. 
Connecticut  Acad.  Arts  Sci.,  Mem.,  i,  83-96,   1810. 

Description  of  the  various  geological  features  of  New  Haven  and  its 
immediate  vicinity  —  sand  plain  (made  from  material  worn  from  the 
surrounding  hills);  various  elevations  surrounding  the  town,  both  trap, 
sandstone,  and  crystallines   ("micaceous  schistus,  magnesian   schistus"). 

(The  above  article  was   written   in   1806. — Ed.) 

261.  Silliman,  B.,  and  Kingsley,  J.  L. 

An  account  of  the  meteor,  which  burst  over  Weston,  in 
Connecticut,  in  December,  1807,  and  of  the  falling  of 
stones  on  that  occasion,  with  a  chemical  analysis  of  the 
stones. 

Connecticut  Acad.  Arts.  Sci.,  Mem.,  i,  pp.  i,  141-161, 
1810. 

Published  earlier  in  the  Connecticut  Herald  and  in  Trans. 
Am.  Phil.  Soc.  of  Philadelphia,  1808. 

Accounts  by  Nathan  Wheeler,  Elihu  Staples,  and  others  who  wit- 
nessed the  fall.  Original  meteor  300  feet  in  diameter  fell  in  frag- 
ments at  si-x  localities,  the  most  remote  being  ten  miles  apart.  De- 
scription is  given  of  the  stone  at  large;  the  pyrites;  the  malleable  iron; 
the  black  irregular  masses;  the  crust;  the  globular  bodies.  The  analy- 
sis showed  silex  51.5;  chloride  of  iron  38;  magnesia  13;  oxide  of  nickel 
1.5;    sulphur    I. 

(This  is  the  first  description  of  an  American  meteorite  in  which  the 
phenomena  of  the  fall  and  the  composition  of  the  rock  are  given.  Frag- 
ments of  this  meteor  are  in  Yale  University  museum. —  Ed.) 

262.  Silliman,  B. 

Mineralogical  and  geological  observations  on  New  Ha- 
ven and  its  vicinity. 

Am.  Min.  Jour.,  i,  139-149,  1814.  Abstract:  Jour.  Phys. 
Chim.,  Ixxv,  75-79,  1812;  Am.  Jour.  Sci.,  (i)  i,  55-56,  1818; 
Treatise  on  Mineralogy  and  Geology,  Cleaveland,  555, 
1822. 

The  following  geological  matters  are  discussed:  Alluvial  plain,  sand- 
stone, granite;  "  East  and  West  mountains,"  Pine  Rock,  of  greenstone; 
slate  of  West  Haven;  magnetic  sand  on  the  beach;  serpentine;  lime- 
stone. 

263.  Silliman,  B. 

Localities  of  mineral  and  animal  remains  and  acknowl- 
edgment of  specimens  received. 

Am.  Jour.   Sci.,   (i)   i,  237-243.   1819. 

Mention  of  rose  quartz  from  Southbury;  plumbago  from  Cornwall; 
coal  from  Suffield  and  Southington;  sulphate  of  barytes,  with  coal,  etc.; 
molybdena  from  Pettipaug,  Saybrook;  beryl  from  Haddam. 


62  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

264.  Silliman,  B. 

Mineralogical  and  geological  observations  on  New  Ha- 
ven and  its  vicinity. 

Am.  Jour.  Sci.,  (i)  i,  55-56,  1819. 

An  account  of  native  copper  found  in  the  drift  at  Wallingford. 

265.  Silliman,  B. 

Sketches  of  a  tour  in  the  counties  of  New  Haven  and 
Litchfield  in  Connecticut,  with  notices  of  the  geology, 
mineralogy,  and  scenery. 

Am.  Jour.  Sci.,  (i)  ii,  201-235,  1820. 

Conversational  description,  in  diary  form,  of  a  tour  through  western 
Connecticut,  touching  at  New  Haven,  Watertown,  Goshen,  Salisbury, 
Kent,  New  Preston,  New  Milford,  Woodbury;  mentions  Secondary  green- 
stone ranges.  Primitive  slate  rocks,  gneiss,  granite,  limestone,  and 
iron  ores;  describes  the  scenery  as  well  as  various  manufactories,  etc. 

266.  Silliman,  B. 

Remarks  made  on  a  short  tour  between  Hartford  and 
Quebec  in  the  autumn  of  1819.  407  pp.,  12°,  New  Haven, 
1820;  2d  ed.,  443  pp.,  9  pis..  New  Haven,   1824. 

Describes  tour  from  Hartford  over  Talcott  mountain  through  Canton,. 
New  Hartford,  and  thence  up  the  Farmington  river  to  Massachusetts. 
The  central  area  of  Secondary  sandstone  and  trap  or  greenstone  is- 
described.  "  The  ridges  of  greenstone  repose  almost  universally  upon 
sandstone."  The  topography  of  the  trap  ridges  and  the  talus  slopes  is 
explained.  "  It  is  amusing  to  observe  how  immediately  the  materials- 
of  the  fences  and  the  buildings,  so  far  as  they  are  constructed  of  stone, 
change  as  soon  as  the  geology  of  the  country  changes." 

The  western  crystallines  are  described  as  gneiss  in  "  high,  rounded. 
Primitive  hills." 

267.  Silliman,  B. 

Remarks  on  red  sandstone  of  the  Connecticut  region. 

Am.  Jour.  Sci.,   (i)   iii,  221,  222,   1821. 

Mentions  general  relation  of  "  trap-formation  "  of  New  England. 
Ridges  of  columnar  greenstone  trap  reposing  on  red  sandstone  rock, 
beneath  which  lie  slaty  bituminous  rocks;  in  the  latter  were  found,  at 
Westfield,   fish   impressions  and   copper  minerals. 

268.  Silliman,  B. 

Notice  of  "  Geological  essays,  or  an  inquiry  into  some 
of  the  geological  phenomena,  to  be  found  in  various  parts 
of  America  and  elsewhere  —  By  Horace  H.  Hayden,  Esq., 
member  of  the  American   Geological   Society." 

Am.  Jour.  Sci.,  (i)  iii,  47-57,  1821. 

Discussion  of  Mr.  Hayden's  theory  that  the  alluvial  region  skirting 
the  Atlantic  Ocean  is  the  result  of  the  operation  of  currents  (whose 
cause    is    the    deluge    of    Noah)    that    flowed    from    northeast    to    south- 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  63 

west,    or    from    north    to    south,    over    the    whole    continent    of    America. 
Discusses   importance   of   rock  decay   and  soil   formation. 

(Well  worth  reading  as  indicating  the  unsettled  state  of  geology  at 
this  period. —  Ed.) 

269.  Silliman,  B. 

Ice  caves  at  Meriden  and  Northford. 
Am.  Jour.  Sci.,  (i)  iv,  174-177,  1822. 

Account  of  the  ice  deposits  that  are  found  in  the  deep  ravines  and 
gorges  at  Meriden  and   Northford. 

270.  Silliman,  B. 

Jce  caves  at  Salisbury. 

Am.  Jour.  Sci.,  (i)  viii,  254,  1824. 

Account  of  the  ice  deposits  that  are  found  in  the  deep  ravines  and 
gorges  of  Salisbury. 

271.  Silliman,  B. 

Bakewell's  Introduction  to  Geology.  Edited  by  Benj. 
Silliman;  with  appendix.  Outline  of  Silliman's  course  of 
lectures  at  Yale,     ist  Am.  ed.,  1829. 

Mentions  Connecticut  river  terraces,  gorge  at  Middletown,  influence 
of  geological  structure  on  people,  intrusive  trap,  bowlders.  East  Haven 
conglomerate,    diluvium. 

272.  Silliman,  B. 

Igneous  origin  of  some  trap  rock. 
Am.  Jour.  Sci.,  (i)  xvii,  119-131,  1830. 

Discusses  question  of  igneous  or  aqueous  origin  of  trap,  particularly- 
at  Rocky  Hill,  3  miles  S.  S.  W.  of  Hartford;  "this  trap  is  a  crystalline, 
and  the  sandstone  under  it  a  mechanical  rock;  "  "  trap  deposited  and 
aggregated,"  "from  a  state  of  chemical  mobility";  vesicular  character 
of  trap  described;  contact  described  in  detail.  "For  myself  I  must 
say  that  the  effects  that  have  been  produced  both  vipon  the  trap  and  the 
sandstone  .  .  .  are  such  as  I  can  attribute  to  no  agent  but  fire."" 
"  The  effects  on  both  rocks  are  just  such  as  .  .  .  we  must 
expect  from  intense  heat  acting  under  great  pressure." 

(If  this  early  work  of  Silliman  had  been  kept  in  mind,  and  his 
method  of  investigation  followed,  there  probably  would  never  have  beei> 
two  contradictory  opinions  regarding  the  origin  of  the  trap  rock  of  Con- 
,        necticut. —  Ed.) 

273.  Silliman,  B. 

Notice  of  a  report  on  the  geological  survey  of  Connecti- 
cut, by  Prof.   C.  U.  Shepard. 

Am.  Jour.  Sci.,  (i)  xxxiii,  151-175,  1837. 
Largely  an  extended  abstract  of  Shepard's  report,  258. 

274.  Silliman,  Benjamin,     (i 779-1864.) 

Biography. 

Fisher:  Life  of  Benjamin  Silliman,  2  vols.,  New  York,. 
Scribner  and  Co.,   1866. 


64  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.       [BuU. 

Dana:  Am.  Jour.  Sci.,   (2)   xxxix,  i-io,   1865. 
Caswell:  Nat.  Acad.  Sci.,  Mem.,  i,  101-112,  1877. 

Pop.  Sci.  Mon.,  xxiii,  259-266,  1883. 

275.  Silliman,  B.,  Jr. 

Dr.  Percival,  the  original  discoverer  of  the  crescent- 
formed  dikes  of  trap  in  the  New  Red  sandstone  of  Con- 
necticut. 

Am.  Jour.  Sci.,  (i)  xlvi,  205-206,  1844. 

Credit  given  to  Percival  to  correct  a  misunderstanding. 

276.  Silliman,  B.,  Jr. 

Report  on  the  intrusive  traps  of  the  New  Red  sandstone 
of  Connecticut. 

Am.  Jour.  Sci.,  (i)  xlvii,  107,  108,  1844:  Assoc.  Am.  Geo!., 
Proc,   14,   15,   1844;   Neues  Jahrb.,  728,   729,   1845. 

Abstract  of  the  conclusions  concerning  the  origin  and  formation  of 
the  sandstone  and  trap  of  Connecticut.  Sandstones  laid  down  in 
"angular  position,"  dipping  easterly;  igneous  dikes  entered  sediments 
far  below  surface;  present  topography  due  to  enormous  northerly  cur- 
rent. 

277.  Silliman,  B.,  Jr. 

On  fossil  trees  found  at  Bristol,  Connecticut,  in  the 
New  Red  sandstone. 

Am.  Jour.  Sc,  (2)  iv,  116-118,  1847. 

Description  of  two  fossil  coniferous  trees  found  in  a  sandstone 
quarry  on  the  banks  of  the  Pequabuck  river  near  Bristol. 

278.  Silliman,  B.,  Jr.,  and  Whitney,  J.  D. 

Notice  of  the  geological  position,  and  character  of  the 
copper  mine  at  Bristol,  Connecticut. 
Am.  Jour.  Sci.,  (2)  xx,  361-368,  1855. 
(See  Whitney  and  Silliman,  296.) 

279.  Smith,  A. 

On  the  water  courses  and  the  alluvial  and  rock  forma- 
tions of  the  Connecticut  river  valley. 

Am.  Jour.  Sci.,  (i)  xxii,  205-231,  map,  1832. 

Statement  of  the  course  and  extent  of  the  valley  of  the  Connecticut. 
General  discussion  of  the  disintegration  of  primitive  rock  strata  into 
gravel,  sand,  clay.  Mention  of  the  Primitive  (crystalline)  formation. 
Description  of  the  Secondary  (sandstone  and  trap)  formation  and  dis- 
cussion of  its  origin. 

280.  Smock,  J.  C. 

Geological-geographical   distribution   of   the    iron   or*s 
of  the  eastern  United  States. 

Am.  Inst.  Min.  Eng.,  xii,  130-144,  1884. 

The   Connecticut  ores   discussed  are  magnetite,   Laurentian,   Fairfield 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  65 

county;  titaniferous  magnetite,  Huronian,  "in  gneiss  in  Connecticut"; 
limonite,  Lower  Silurian,  Litchfield  county;  iron  coloring  the  Triassic 
sandstones  and  shales. 

281.  Stodder,  C. 

On  the  occurrence  of  clay  on  the  banks  of  the  Farming- 
ton   river,   Connecticut. 

Boston  Soc.  Nat.  Higt.,  Proc,  vi,  138-139,  1857. 

Description  of  clay  concretions  or  segregations  in  clay  on  the  Farm- 
ington  river,   Windsor. 

282.  United  States  Geological  Survey. 

The  following  titles  of  papers  issued  by  the  United 
States  Geological  Survey  are  listed  under  the  names  of 
the  authors:  — 

Davis,  83,  98;  Emerson,  112,  113;  Fuller,  119;  Gannett, 
120,  121;  Gregory,  123,  124;  Hobbs,  155,  156,  159;  Knowl- 
ton,  180;  Marsh,  206;  Newberry,  221;  [Newell],  223,  224; 
Pynchon,  239;  Rafter,-  240;  Ries,  244,  245;  Russell,  252, 
253;  Walcott,  288. 

MINERAL  RESOURCES   OF  THE   UNITED   STATES 
(OLD    SERIES). 

1882,  nickel,  cobalt,  401  (history  of  the  mine  in  Chatham).  "Ores, 
minerals,  and  mineral  substances  of  industrial  importance  which  are  at 
present  mined  "  are  feldspar,  flagging  stone,  granite,  limonite,  marble, 
sandstone,  trap.  Localities  given,  672.  Ores,  etc.,  "  which  are  not  at 
present  mined  "  are  apatite,  arsenopyrite,  agate,  barite,  beryl,  bismuth, 
bornite,  calamine,  cassiterite,  chalcocite,  chalcopyrite,  corundum,  clay, 
galenite,  garnet,  graphite,  hydraulic  limestone,  limonite,  magnetite, 
malachite,  molybdenite,  niccolite,  pyrite,  pyrrhotite,  quartz,  rutile,  sider- 
ite,  smaltite,  sphalerite,  talc,  topaz,  uraninite.  Localities  given,  672- 
674. 

1883-18S4,  cobalt,  544;  feldspar,  933;  mica,  908;  mineral  waters, 
908;  tungsten,   574. 

1885,  building  stone,  397;  fertilizers,  469;  iron,  182;  lime,  410; 
mineral  waters,   537;   precious  stones,   439. 

1886,  granite,  537;  iron,  14,  17,  42;  mineral  waters,  716;  structural 
materials,   522. 

1887,  granite,   573;   iron,    11;   lime,   532;   minerals,   714. 

1888,  list,  with  localities,  of  minerals  and  rocks  mined  and  not 
mined,  714-7:6;  brick,  558,  566;  granite,  536;  iron,  14;  lime,  535; 
mineral   waters,   626,   630. 

1889-1890,  brown  hematite,  40;  granite,  374,  385;  iron,  10,  17,  24, 
35,  36;  limestone,  373,  385,  386  (analysis);  mineral  waters,  522;  sand- 
stone, 374,  385. 

1891,  clay,  502;  granite,  457,  458;  iron,  12,  27,  61;  limestone,  464, 
465;  mineral  waters,  603,  604;  sandstone,  401. 

1892,  beryl,  766;  granite,  706,  707;  iron,  26,  34;  limestone,  711; 
mineral  waters,  824,  826;  sandstone,  710;  topaz,  764. 

1893,  granite,  545;  infusorial  earth,  678;  iron,  26,  28,  35;  limestone, 
SSS;  mica,  753;  mineral  waters,  774,  776,  787;  sandstone,  533;  stone 
at    World's    Columbian    Exposition,    362. 

1894-189S,  granite,  459;  limestone,  496;  sandstone,  486;  iron, 
192. 

5 


66  CONNECTICUT    GEOL.    AND    NAT,    HIST.    SURVEY.        [Bull. 

ANNUAL  REPORTS. 

1894-95,  Pt.  iii,  iron  ore,  192,  201;  pt.  iv,  granite,  459;  limestone, 
496;   mineral   waters,   712;    sandstone,   486. 

1895-96,  pt.  iii,  granite,  764;  limestone,  792,  802;  mineral  waters, 
1032;  sandstone,  779. 

1896-97,  pt.  V,  brownstone  (analyses),  1030;  feldspar,  1365;  granite, 
957;  limestone,   1049;  mineral  waters,   1377;  sandstone,   1017-1021. 

1S97-98,  pt.  vi,  clay,  354;  feldspar,  657;  granite,  208,  213,  232;  lime- 
stone, 280,  283,  2874  mineral  springs,  661,  667;  Portland  cement,  487, 
492;   quartz,   657;   sandstone,   264-267. 

1898-99,  pt.  vi,  clay,  515;  feldspar,  693;  granite  (analyses  and  tests), 
2TT,  362,  364;  limestone  (analyses),  346,  370;  mineral  waters,  756; 
quartz,  58S;  sandstone  (analyses  and  tests),  339,  365-369;  tourmaline, 
577;  trap   (analyses  and  tests),  364,  365;  tungsten,  594. 

1899-1900,  pt.  vi,  beryl,  450;  clay,  362,  363;  garnet,  467;  granite, 
336-340;  limestone,  357-360;  mineral  waters,  598,  607;  sandstone,  353, 
365;    silicified   wood,   455;    stone,    335. 

MINERAL  RESOURCES  OF  THE  UNITED  STATES 
(NEW  SERIES). 

1900,  clay,  695,  698,  728;  feldspar,  895;  flint,  895;  granite,  662,  664, 
667;  infusorial  earth,  794;  iron  ores,  43,  57;  limestone,  662,  685;  lithio- 
philite,  242;  mineral  waters,  901;  pig  iron,  96;  pottery,  715;  sandstone, 
662,  670,  673;  scheelite,  258;  spodumene,  241;  tourmaline,  761;  trap, 
666. 

1901,  barytes,  915;  clay,  674-677,  711;  feldspar,  938;  flint,  936; 
granite,  650;  ilmenite,  272;  infusorial  earth,  798;  iron,  60,  76,  100,  103; 
limestone,  667;  mica,  875;  mineral  waters,  962;  monazite,  950;  pig  iron, 
86;  pottery,  700;  quartz,  800;  rutile,  272;  sandstone,  656;  stone,  643; 
trap,  654;  tripoli,  798;  tungsten,  263. 

1902,  barytes,  945;  brick,  719;  clay,  707,  747,  757;  corundum,  831, 
886;  essonite,  837;  feldspar,  973;  flint,  972;  granite,  678;  iron,  43,  59, 
67,  68;  limestone,  698;  marble,  693;  mica,  985;  mineral  waters,  996; 
pig  iron,  86,  87;  pottery,  734,  738;  quartz,  883;  sandstone,  684;  stone, 
669;   tourmaline,   841;   tile,   719;   trap,   669;   tungsten,  286. 

1903,  ammonia,  629;  asbestos,  1112,  1114:  brick,  796,  809;  clay,  796, 
860;  coal  tar,  624;  feldspar,  11 19;  flint,  11 17;  granite,  758,  766,  768; 
garnet,  1005;  gas,  611,  619,  622;  iron,  43,  59,  67,  68;  limestone,  758, 
786;  marble,  758,  781;  mineral  waters,  1139;  pig  iron,  93-95;  pottery, 
796,  809;  quartz,  1004;  sandstone,  758,  770;  spodumene,  313;  steel, 
103,  104,  106;  tourmaline,  926;  tile,  796,  809;  trap,  769;  tungsten, 
307- 

1904,  ammonia,  669;  asbestos,  1137;  bismuth,  375;  brick,  863,  871; 
clay,  850,  859;  coal  tar,  664;  columbite,  1225;  feldspar,  1144;  flint, 
1143;  gas,  654,  662;  granite,  805;  iron,  40,  53,  62;  limestone,  805; 
marble,  805;  mica,  1175,  1181;  mineral  waters,  1187,  1190;  molybdenum, 
339;  pig  iron,  79;  pottery,  882,  892;  quartz,  998,  1009;  sand,  1149; 
sandstone,  80,  805;  steel,  88,  91,  loi;  tourmaline,  942,  954;  tile,  863, 
871;    ttap,   805;   tungsten,   333. 

WATER   SUPPLY  AND   IRRIGATION   PAPERS. 

The  following  papers,  published  by  the  U.  S.  Geological  Survey 
as  Water-Supply  and  Irrigation  Papers,  contain  statistical  matter  more 
or  less  closely  related  to  geology:  — 

No.   35,   1900.     Daily     readings    of    height     of     Connecticut    river     at 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  dy 

Hartford,  given  for  period  February  8,  1896,  to  December  31,  1899, 
inclusive,  42-44. 

No.  44,  1901.  Profiles  of  rivers  in  the  United  States,  12-14.  Dis- 
cusses and  illustrates  profiles  of  Connecticut  and  Housatonic  rivers 
from   source   to   mouth. 

No.  47,  1 90 1.  Daily  readings  in  height  of  the  Connecticut  river  at 
Hartford  given  for  the  year  1900,  and  for  Housatonic  at  Gaylordsville 
from  October   23   to'  December  31,    1900,   35. 

No.  63,  1902.  Daily  readings  of  height  of  the  Housatonic  at  Gay- 
lordsville from  October  23,  1900,  to  December  31,  1901;  also  list  of 
undeveloped   water   powers   along   that  stream,   87-90. 

No.  75,  1903.  Table  and  diagram  of  monthly  discharge  of  Housa- 
tonic at   Gaylordsville,   24. 

No.  yS,  1903.  Housatonic  river;  quality  of  water,  84,  85;  daily 
gage  height,  1900-02  inclusive,  93-95;  current  meter  discharge  measure- 
ments,  104. 

No.  82,  1903.  Daily  readings  of  Connecticut  river  at  Hartford  for 
the   year    1902,   48,   49. 

No.  97,  1904.  A  study  of  the  Connecticut  River  drainage  basin,  in- 
cluding daily  gage  height  at  Hartford  for  1903,  80-83;  the  Mianus  river 
near  Stamford  for  1903,  94-114;  Byram  river  at  Pemberwick,  Green- 
wich,  and   Riverville   for    1903,    1 18-124. 

No.  124,  1905.  Daily  gage  reading  of  Connecticut  river  at  Hart- 
ford, for  1904,  121-122;  daily  gage  reading  of  the  Housatonic  at  Gay- 
lordsville, 147-152;  of  Shetucket  near  Willimantic  for  1904,  112- 
113- 

No.  144,  1905.  Distribution  of  chlorine  in  ground  water,  and  tables 
showing  determinations   for   the   state,   22-28,   map. 

No.   149,   1905.     List  of  deep   well  borings   in  Connecticut,  23-24. 

283.     Upham,  W. 

The  succession  of  Glacial  deposits  in  New  England. 
Am.  Assoc.  Adv.  Sci.,  Proc,  xxviii,  299-310,  1880. 

Description  of  the  occurrence  and  extent  of  the  various  drift  de- 
posits,—  till,  stratified  deposits,  moraines,  etc.,  of  New  England.  Dis- 
cussion of  origin.  No  description  of  any  particular  glacial  phenomena 
of   Connecticut. 

^84.     U[pham],W. 

[Abstract   of]    "  Some   typical   eskers   of  southern   New 
England,"  by  J.  B.  Woodworth. 
Am.  Geo!.,  xiv,  396,  1894. 

Woodworth's  article  states  that  eskers  were  deposited  in  channels 
of  drainage  upon,  in,  or  beneath  the  waning  ice-sheet.  (See  Wood- 
worth,   301.) 

285.  Valcherville,  M.  de. 

Highland   Park,  Manchester.  ; 

Connecticut  Quart.,  i,  299,  1895. 
Describes   the   old   Wyllys   copper   mine. 

286.  Walcott,  C.  D. 

The  Taconic  system  of  Emmons,  and  the  use  of  the- 
name  Taconic  in  geologic  nomenclature. 


68  CONNECTICUT    GEOL,    AND    NAT.    HIST.    SURVEY.        [Bull. 

Am.  Jour.  Sci.,  (3)  xxxv,  229-242,  307-327,  394-401,  map 
and  section,  1888.  Abstract:  Nature,  xxxvii,  500,  1888. 
Review  by  J.  Marcou:  Am.  Geol.,  ii,  10-23,  67-88,  1888. 

This  exhaustive  discussion  of  the  Taconic  question  is  subdivided  as 
follows:  I.  The  Taconic  area  and  geologic  work  within  it;  2.  Geology 
of  the  Taconic  area  as  known  at  the  present  time;  3.  Geology  of  the 
Taconic  area  as  known  to  Dr.  Emmons;  4.  Comparison  and  discussion; 
5.  Nomenclature.     (See  Emmons,  115.) 

287.  Walcott,  CD.' 

Synopsis  of  conclusions  on  the  "  Taconic  of  Emmons." 
Internat.   Cong.   Geol.,    Rept.   Am.   Comm.,   25-29,   1888; 
Am.  Geol.,  ii,  215-219,  1888. 

Name  Taconic  "  based  on  error  and  misconception  originally,  and 
used  in  an  erroneous  manner  since";  and  should  not  be  used  as  in- 
dicating stratigraphic  position. 

(See  also,  Walcott,  2S6.) 

288.  Walcott,  C.  D. 

Correlation  papers,  Cambrian. 

U.  S.  Geol.  Surv.,  Bull.  No.  81,  1-447,  3  pIs.,  1891. 

Historical  review  of  the  geologic  and  paleontologic  work,  and  sum- 
mary of  the  present  knowledge  of  the  Cambrian  areas  of  North  America. 
Mention  of  the  quartzite  of  Canaan. 

289.  Warren,  J.  C. 

Geological  position  of  the  Mastodon. 
Boston  Soc.  Nat.  Hist.,  Proc,  iii,  iii,  1849. 
Brief   mention   of   the   remains    of   mastodons    found    in    Connecticut, 
"  about   midway  between  the   Connecticut   River  and  the  Hudson." 

290.  Webster,  J.  W. 

Localities  of  minerals,  observed  principally  in  Haddam 
in  Connecticut,  in  September,  1819. 

Am.  Jour.  Sci.,  (l)  ii,  239,  240,  1820. 

Mention  of  tourmaline  and  epidote  in  mica  slate  and  gneiss;  chryso- 
beryl  in  a  granite  vein  traversing  the  gneiss,  containing  also  garnet  and 
tourmaline;  actinolite  in  mica  slate;  all  of  the  above  near  Haddam. 
Globular  concretion  of  gneiss  near  Jewett  City;  tourmaline  at  Bozrah; 
transparent  garnets  at  Tolland,  also  graphite. 

291.  Wells,  D.  A. 

On  the  Connecticut  valley  sandstone  formations. 
Boston  Soc.  Nat.  Hist.,  Proc,  iii,  339-340,  1850. 

The  upper  members  of  the  Connecticut  River  sandstones  are  of  an 
entirely  different  age  from  the  lower.  This  is  evidenced  by  the  limit- 
ation of  the  fossils  to  the  upper  beds,  and  by  the  different  lithological 
characters. 

292.  Wells,  D.  A. 

On  the  origin  of  stratification. 

Boston    Soc.    Nat.    Hist.,    Proc,    iv,    108-110,    1851;    Am. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  69 

Assoc.  Adv.  Sci.,  Proc,  vi,  297-299,  1852. 

The  shales  and  sandstones  of  the  Connecticut  Triassic  are  cited  to 
prove  that  all  strata  are  not  produced  either  by  an  interruption  of 
deposition  or  by  a  change  in  the  quality  of  the  material  deposited. 

293.  Wells,  D.  A. 

Evidences  of  glacial  action  in  southeastern  Connecti- 
cut. 

Pop.  Sci.  Mon.,  xxxvii,  196-201,  1890. 

Description  of  several  large  glacial  bowlders  in  the  region  between 
Groton  and  Noank,  at  Fisher's  island,  and  near  Norwich. 

294.  Wells,  D.  A. 

Remarkable  bowlders. 

Pop-.  Sci.  Mon.,  xl,  340-346,  1892. 

Description  of  several  large  bowlders  occurring  at  Montville,  about 
midway  between   Guilford  and  Leete  Island,  and  in  Massachusetts. 

295.  Westgate,  L.  G. 

A  granite-gneiss  in  central   Connecticut. 
Jour.  Geol.,  vii,  638-654,  4  figs.,  map,  1899. 
The  gneiss  at  Maromas  is  shown  to  be  igneous;  its  field  relations  and 
petrography  are  described  in  detail. 

296.  Whelpley,   J.   D. 

Trap  and  sandstone  of  the  Connecticut  valley. 
Assoc.  Am.  Geol.,  Proc,  vi,  61-64,  1845. 

Originally  the  sandstone  area  covered  the  Housatonic  and  Con- 
necticut valleys  and  the  space  between.  Woodbury  and  larger  portions 
in  Connecticut  valley  preserved  because  they  had  hard  trap  dikes  in 
them.  These  dikes  "  acted  as  so  many  dams  and  headwaters  against  the 
denuding  flood,"  thus  protecting  the  sandstone.  The  crescentic  form 
of   dikes   is   due  to   irregularities  of  vent. 

297.  Whitney,  J.  D.,  and  Silliman,  B.,  Jr. 

Notice  of  the  geological  position  and  character  of  the 
copper  mine  at  Bristol,   Connecticut. 

Am.  Jour.  Sci.,  (2)  xx,  361-368,  1855. 

The  mine  is  situated  at  the  contact  of  the  sandstone  and  the  meta- 
morphic  rocks.  The  copper  ore  ("  vitreous  and  variegated  "  types  with 
some  copper  pyrites)  is  obtained  from  the  micaceous  and  hornblende 
slates,  talcose  micaceous  slate,  and  sandstone.  A  history  of  the  mine  is 
given;  opened  in  1836;  not  worked  extensively  until  1846.  The  sand- 
stone is  of  Liassic  age,  and  the  metamorphic  rocks  belong  to  the 
Paleozoic  system. 

298.  Whittle,  C.  L.,  and  Davis,  W.  M, 

The  intrusive  and  extrusive  Triassic  trap  sheets  of  the 
Connecticut  valley. 
Mus.  Comp  ZooL,  Bull.,  xvi,  99-138,  i  pi.,  1889. 

(See   Davis  and  Whittle,    100.) 


70  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY. 

299.  Williams,  S. 

Observations  and  conjectures  on  th<;  earthquakes  of 
New  England. 

Am.  Acad.  Arts  Sci.,  Mem.,  i,  260-311,  1785. 

The  paper  is  divided  into  two  parts:  i.  An  historical  account  of 
earthquakes  of  1638,  1658,  1663,  1725,  1755,  and  of  several  minor 
shocks;     2.    Causes    of   earthquakes. 

300.  Winchell,  N.  H. 

Comparative  strength  of  Minnesota  and  New  England 
granites. 

Am.  Assoc.  Adv.  Sci.,  Proc,  xxxii,  249,  250,  1884. 

Abstract  of  article  showing  by  a  series  of  comparative  tests  that 
the  Minnesota  granites  are  stronger  than  those  of  New  England.  The 
Connecticut  granites  tested  came  from  Mystic  river,  Stony  Creek, 
Millstone  point,   Greenwich,   New   London. 

301.  Woodworth,  J.  B. 

Some  typical  eskers  of  southern  Ne\y  England. 
Boston  Soc.  Nat.  Hist.,  Proc,  xxvi,  197-220,  1894. 

The  typical  eskers  of  southern  New  England  are  most  easily  explained 
by  assuming  a  subglacial  origin,  but  certain  ones  demand  a  channel 
open  to  the  sky;  esker  at  Compounce  Pond  described;  others  in  Con- 
necticut mentioned. 

302.  Author  unknown. 

[Review  of]  "  Outline  of  the  geology  of  England  and 
WalCjS,  with  an  introductory  compendium  of  the  general 
principles  of  the  science  and  comparative  views  of  the 
structures  of  foreign  countries.  By  Rev.  W.  B.  Cony- 
beare  and  William  Phillips.  Pt.  I,  470  pp.,  London,  1822." 
Am.  Jour.  Sci.,  (i)  vii,  203-240,  1824. 

Comparison  of  the  red  sandstone  of  Connecticut  with  the  marl  and 
Old  Red  sandstone  of  England. 

303.  Author  unknown. 

What  constitutes  the  Taconic  range  of  mountains? 
Am.  GeoL,  vi,  247,  i  pi.,  1890. 

Quotations  from  Dr.  Asa  Fitch,  Prof.  J.  D.  Dana,  and  Mr.  C.  D. 
Walcott,  in  order  to  verify  the  claims  of  Dr.  Emmons  as  to  what  con- 
stitutes the  Taconic  range  of  mountains. 


LIST    OF   MAPS. 


500.  Blake,  W.  P.,  and  Hitchcock,  C.  H. 

Geological  map  of  the  United  States. 

Atlas  of  the  U.  S.  and  the  world  by  Gray,  folio,  Phila- 
delphia, 1871;  Statistics  of  mines  and  mining  in  the  states 
and  territories  west  of  the  Rocky  mountains,  Sth  report 
by  R.  W.  Raymond,  Washington,  1873;  Statistical  atlas 
of  the  United  States  based  on  results  of  the  9th  Census, 
1870,  pis.  xiii,  xiv,  Washington,  1875;  Special  report  for 
the  Centennial,  1876;  Smithson.  Contr.  Knowl.,  1876;  Die 
Vereinigten  Staaten  von  Nord-Amerika  (F.  Ratzel),  i, 
Miinchen,  1878. 

Connecticut  is  marked  "  Eozoic  "  except  the  Connecticut  valley  and 
Pomperaug  areas  of  "Jurassic  and  Triassic  "  rocks.  Note  states: 
"  There  may  be  some  metamorphic  Palaeozoic  formations  included  in 
the   Atlantic   portions   of  the   Azoic." 

501.  Bradley,  F.  H. 

Geological  chart  of  the  United  States  east  of  the  Rocky 
mountains  and  of  Canada.  Folder,  16  bj^  24  inches,  New 
York,  1875. 

The  formations  shown  in  Connecticut  are:  Archaean,  all  that  part  of 
the  state  east  of  the  Triassic;  Lower  Silurian,  nearly  all  of  western 
Connecticut;  Upper  Silurian,  in  eastern  Litchfield  and  western  Hart- 
ford county;  Triassic,  central  Connecticut  and  Southbury.  Scale  ap- 
proximately  I    inch^rpo  miles. 

502.  Chapin,  J.  H. 

Map  showing  the  triangulation  of  Connecticut,  by  the 
United  States  Surveys. 

]Meriden  Sci.  Assoc,  Trans.,  iv,  51,  1890. 

Scale,  -/3   inch  :^  10  miles. 

503.  Crosby,  W.  O. 

i\Iap  of  the  proposed  sites  of  the  dams  in  the  valley  of 
the  Housatonic  and  of  the  Tenmile  river. 

Tech.  Quart.,  xiii,  No.  2,  123,  1900. 

A  topographic  map,  showing  the  relations  of  the  Tenmile  and  Housa- 
tonic valleys,  extending  from  Dover  Plains  to  Pawling,  including  part 
of  the  Housatonic  river  in  Connecticut.     Scale   i   inch=:2  miles. 

504.  Dana,  J.  D. 

Topographic  map  of  the  New  Haven  region. 
Connecticut  Acad.  Arts  Sci.,  Trans.,  ii,  45,  1873. 

Extends  north  from  the  Sound  to  include  Blount  Carmel.  In- 
cludes Woodbridge  hills  on  the   west,  and  lake   Saltonstall  on   the  east. 


72  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

»       The  various  elevations  are  indicated  by  hachures.     Rivers,  railroads,  and 
a  few  roads  are  indicated.     Scale  ^  inch^i  mile. 

505.  Dana,  J.  D. 

Map   of  the   New    Haven   region. 
Am.  Jour.  Sci.,  (3)  x,  171,  415,  1875. 

Embraces  a  tract  about  four  miles  on  each  side  of  the  harbor,  ex- 
tending north,  including  Mount  Carmel.  Shows  geography  and  some 
topography.      Scale   ^    inchm    mile. 

506.  Dana,  J.  D. 

Map  of  the  Connecticut  valley  and  part  of  the  coast  of 
southern  New  England. 

Am.  Jour.  Sci.,  (3)  x,  499,  1875;  xxv,  pi.  v,  1883. 

Gives  main  geological  features  and  some  topography  of  an  area  along 
the  Connecticut  river  from  Northampton  south;  5  to  12  miles  on  the 
east  side,  20  to  35  miles  on  the  west  side.  Scale  approximately  i  inchz:: 
12  miles. 

507.  Dana,  J.  D. 

Map  of  Dutchess  and  the  adjoining  counties  of  eastern 
New  York,  with  a  portion  of  western  Connecticut  and 
southwestern  Massachusetts. 

Am.  Jour.  Sci.,  (3)  xvii,  379,  1879. 

Locates  the  limestone   belts   of  western    Connecticut,   about    12   miles 
■  wide,  down  to  about  3  miles  south  of  New  Fairfield.     Scale  -h  inch^ 
I   mile. 

508.  Dana,  J.  D. 

Map  of  limestone  areas  of  Westchester  county.  New 
York. 

Am.  Jour.  Sci.,  (3)  xx,  pi.  v,  1880. 

Takes  in  that  part  of  Connecticut  west  of  the  line  running  south 
from  Danbury,  and  south  of  a  line  running  west  from  that  town. 
Locates  the  limestone  areas  in  color.      Scale   i   inchz::3  miles. 

509.  Dana,  J.  D. 

Map  of  limestone  areas  of  Dutchess,  Westchester,  and 
Putnam  counties,  New  York,  and  part  of  western  Con- 
necticut, with  the  Archcean  of  Putnam  county  and  the 
Palisade  trap  range. 

Am.  Jour.  Sci.,   (3)   xx,  p].  viii,   1880. 

Includes  that  part  of  Connecticut  west  of  a  line  running  north  and 
south  at  a  distance  of  about  10  miles  east  of  Salisbury.  Locates  the 
limestone  areas.     Scale   i   inch  =z  10  miles. 

510.  Dana,  J.  D. 

Section  of  the  Connecticut  river  during  the  flood  from 
the  melting  glacier. 

Am.  Jour.  Sci.,  (3)  xxiii,  pi.  ii,  1882. 

Includes  the  central  portion  of  Connecticut,  extending  at  the  south 
from  a  little  west  of  New  Haven  to  a  little  east  of  the  mouth  of  the 
Connecticut.     Approximately  the  same  width  at  the  northern  part  of  the 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  'J}^ 

state.      Transverse   section   of   river   bed   also   given.      Scale    i    inch  =  20 
miles. 

511.  Dana,  J.  D. 

Geological  sketch  map  of  the  Taconic  range. 

Geol.  Soc.  London,  Quart.  Jour.,  xxxviii,  pi.  xvii,  18S2. 

Map  of  Taconic  area  from  Burlington,  Vermont,  to  New  York  City. 
Connecticut  formations  are  mapped  as  Archsan,  crystalline  limestone 
and  Taconic  schists.      Scale  approximately   i    inch:=5   miles. 

512.  Dana,  J.  D. 

]Map  of  the  New   Haven  region. 

Am.  Jour.  Sci.,  (3)  xxvi,  342,  1883. 

Includes  area  south  of  Mount  Carmel,  and  between  Saltonstall  on 
the  east  and  Woodbridge  heights  on  the  west.  Principal  topographic 
features  marked;  also  streets  and  roads.  Outline  of  the  flood-made 
terrace   is   indicated.      Scale    ^    inchm    mile. 

513.  Dana,  J.  D. 

Map  of  the  New  Haven  plain,  showing  its  original 
features. 

Am.  Jour.  Sci.,   (3)  xxvii,  pi.  ii,  1884. 

Includes  the  plain  on  which  the  city  is  built  and  the  adjoining  hills. 
Extends  as  far  north  as  Centerville,  and  south  to  just  below  mouth  of 
West  river.  Gives  outline  of  terrace  area,  river  channels,  and  kettle- 
holes.     Elevations  indicated  by  figures.     Scale  2  inchest i   mile. 

514.  Dana,  J.  D. 

Map  of  the  southern  end  of  a  great  synclinal  in  the 
Taconic  range. 

Am.  Jour.  Sci.,   (3)  xxviii,  pi.  iii,  1884. 

Locates  limestone,  mica  schist,  and  some  ore  pits  of  the  area  im- 
mediately around,  and  to  the  west  and  north  of  Salisbury.  Scale  8 
incheszzi  mile. 

515.  Dana,  J.  D. 

Geological  sketch  map  of  the  Taconic  region,  southern 
part. 

Am.  Jour.   Sci.,   (3)   xxix,  pi.   ii,   1885. 

Locates  schist,  gneiss,  quartzite,  and  limestone  of  northwestern  Con- 
necticut.    Scale   Yi   inch^ii  mile. 

516.  Dana,  J.  D. 

]\Iaps  of  the  New  Haven  region. 

Am.  Jour.  Sci.,  (3)  xlii,  79"!  10,  1891. 

PI.  I.  Map  of  New  Haven.  Shows  topography  of  the  region  by 
hachures.  Scale  i  inchzrsj^  miles.  PI.  II.  Map  of  the  New  Haven 
region  before  1640.  Location,  in  color,  of  East  Rock,  Mill  Rock, 
Pine  Rock,  and  the  southern  part  of  West  Rock.  Location  of  kettle- 
holes  and  terraces  and  old  creek  beds.  Elevations  given.  The  part  of 
the  city  mapped  is  the  original  half-mile  square  bounded  by  George, 
State,  York,  and  Wall  streets.  The  northern  part  of_the  harbor  is 
included.  Scale  i  inch=:2  miles.  PI.  III.  Map  of  East  Rock.  A 
detailed  geological  map  of  East  Rock,  including  Snake  Rock  and  Whit- 
ney   peak.      Scale    i    inch  =  800    feet.      PI.    VI.      West    Rock.      Scale    i 


74  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

inch:zi400  feet;  contour  interval  20  feet.  Fig.  i.  Map  of  Pine  Rock. 
Scale  1  inchz::  1,000  feet.  Fig.  5.  Map  of  Mill  Rock.  Scale  i  inch  = 
1,000  feet.  Fig.  16.  Wintergreen  notch.  Page  44.  Trap  areas  of 
central  Connecticut.  Scale  1  inches  miles.  Page  82.  Map  of  Round 
hill  and  vicinity.  Scale  i  inch zz:J^ mile.  Page  :i2.  Stony  Creek  and 
the  Thimbles.      Scale    i    inchizz^   mile. 

See  also,  The  Four  Rocks  of  the  New  Haven  Region.  New  Haven, 
:89i. 

517.  Dana,  J.  D, 

Map.  of  the  Triassic  of  Connecticut,  from  Hartford 
down  to  the  Sound.  Reproduction  of  part  of  Percival's 
map. 

Am.   Jour.   Sci.,    (3)    xlii,   pi.  xvi,    1891. 

Scale  approximately   i    inch=:6   miles. 

518.  Davis,  W.  M. 

Sketch  maps  of  Hanging  Hills  and  trap  sheet  at  Beck- 
ley  station. 

Mus.  Comp.  Z06I.,  Bull.,  vii,  pi.  x,  1884. 

519.  Davis,  W.  M. 

Modification  of  a  portion  of  Percival's  geological  map 
of   Connecticut    (1842). 

U.  S.  Geol.  Surv.,  7th  Ann.  Rept.,  1887. 

Locates,  in  color,  the  Triassic  area  of  central  Connecticut;  principal 
trap   ridges   are  indicated.      Scale    1:503000. 

520.  Davis,  W.  M. 

Sketch  maps  of  trap  ridges. 
U.  S.  Geol.  Surv.,  7th  Ann.  Rept.,  1877. 

Trap  ridges  near  South  Britain,  fig.  97;  trap  near  Woodbury,  fig. 
99;    Pond,  Totoket,  and   Paug   mountains,   fig.    102. 

521.  Davis,  W.  M. 

Sketch  map  of  IMassachusetts,  Connecticut,  and  Rhode 
Island,  giving  location  of  Triassic  area,  and  of  ridges  near 
Meriden. 

Am.  Jour.   Sci.,   (3)   xxxvii,  424,   1889. 

522.  Davis,  W.  M. 

Outline   map    of   southern    New    England. 
Mus.  Comp.  Z06I.,  Bull.,  xvi,  pi.  i,  fig.  i,  1889. 
Shows    the   Triassic    area    of   the    lower    Connecticut   valley    (dotted) 
and  Meriden  area  (black  square).     Scale  i   inch  =:  100  miles. 

523.  Davis,  W.  M. 

Sketch  maps  of  faulted  areas  in  Triassic. 
Mus.  Comp.  Z06I.,  Bull.,  xvi,  1889. 

Lamentation  mountain,  fig.  2;  Shuttle  Meadow  reservoir,  fig.  3; 
faulted  Triassic  monocline,  Meriden,  fig.  9;  Lamentation  mountain, 
Chauncy  peak,  and  Higby  mountain,  fig.  loa;  Hanging  Hills,  fig.  11; 
area  from  Cook's  gap  to  Short  mountain,  fig.  13;  trap  ridges  and 
faults  in  the  Meriden-New  Britain  district,  fig.   16. 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  J^ 

524.  Davis,  W.  M. 

Diagrammatic  map  of  the  Cretaceous  peneplain  in 
New    England. 

Geol.  Soc.  America,  Bull.,  ii,  551,  1891. 

Shows  general  location  of  Triassic  lowlands  and  crystalline  areas  of 
the  whole  of  Connecticut;  also  of  middle  and  western  Massachusetts, 
and   western   New   York.      Scale   about    i    inch ;=  90   miles. 

525.  Davis,  W.  M. 

Sketch  map  of  the  Triassic  area  of  Connecticut. 
Am.  Jour.  Sci.,  (4)  i,  2,  i8g6. 

Locates  main   trap  ridges  and  fault  lines. 

526.  Davis,  W.  M, 

Sketch  maps  and  diagrams  illustrating  structure  in  the 
Triassic  area. 

U.  S.  Geol.  Surv.,  i8th  Ann.  Rept.,  pt.  ii,  1-192,  1898. 

Uplands  and  lowlands,  fig.  i;  trap  ridges,  fig.  5;  abnormal  fault 
causing  Vineyard  gap,  fig.  24;  marginal  faults  and  Lamentation  fault 
block,  fig.  25;  South  Glastonbury  and  South  Manchester  corners,  fig.  32; 
trap  ridges  near  southwest  end  of  Lamentation  block,  fig.  33 ;  conse 
quent  Jurassic  drainage,  fig.  36;  antecedent  Triassic  drainage,  fig. 
37;  drainage  on  the  Cretaceous  peneplain,  fig.  40;  pre-Glacial  drainage 
fig.  50;  existing  drainage  of  the  Connecticut  Triassic  area,  fig.  5:; 
Quinnipiac   and   Mill   river   headwaters,   fig.    52. 

527.  Davis,  W.  M. 

Geological  map  of  the  Triassic   area  of  Connecticut. 
U.  S.  Geol.  Surv.,  iSth  Ann.  Rept.,  pt.  ii,  pi.  xix,  1898. 

Locates,  in  color,  the  following  formations:  Upper  sandstones,  pos- 
terior trap  sheet,  posterior  sandstones  and  shales,  main  trap  sheet,  an- 
terior sandstones  and  shales,  anterior  trap  sheet,  tufaceous  deposits, 
under  sandstones,  intrusive  trap  sheets,  dikes,  crystalline  areas.  Locates 
also  lines  of  faulting.     Scale  i  inch  =  2  miles;  contour  interval  100  ft. 

528.  Davis,  W.  M.,  and  Griswold,  L,  S. 

The  Connecticut  valley  Triassic  area,  and  a  portion  of 
crystallines  on  either  side. 

Geol.  Soc.  America,  Bull.,  v,  520,  1894. 

Principal  trap  ridges  indicated.  Faults  along  eastern  boundary  and 
within   Triassic   shown.      Scale    i    inch  =r 20   miles. 

529.  Davis,  W.  M.,  and  Loper,  S.  W. 

Sketch  map  of  about  ten  square  miles  near  Meriden. 
Geol.  Soc.  America,  Bull.,  ii,  423,  1891. 

Show  parts  of  Highby,  Chauncy,  Lamentation,  and  Quarry  blocks. 
Localities   of  fossiliferous   anterior  and   posterior   shales   indicated. 

530.  Davis,  W.  M.,  and  Whittle,  C.  L. 

Map  of  Triassic  area  in  Connecticut  from  Long  Island 
Sound  to  the  north  bend  of  the  Farmington  river. 
Mus.  Comp.  Z06I.,  Bull.,  xvi,  137,  pi.  i,  1889.  » 

Based  on  Percival's  map  of  Connecticut.  Gives  location  of  trap 
ridges  and  main   geographic   features.      Scale    1.35    inches:^  10  miles. 


76  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

531.  Davis,  W.  M.,  and  Whittle,  C.  L. 

Sketch  maps  of  Triassic  trap  ridges. 

Mus.  Comp  Z06I.,  Bull.,  xvi,  137,  pi.  iii,  1889. 

Adjacent  ends  of  Saltonstall  and  Totoket  mountains,  fig.  2;  north 
end  of  Totoket  mountain,  fig.  3;  Iligby  mountain,  fig.  4;  Chauncy 
peak,  south  end  of  Lamentation  mountain,  and  Quarry  ridge,  Meriden, 
fig.  5;  Notch  mountain  and  eastern  ridges  of  the  Hanging  Hills,  fig. 
6;  Farmington  mountain  and  its  anterior  ridge,  fig.  7;  Farmington 
river  gap  at  Tariff ville,  fig.  8;  Rock  falls  of  Aramamit  river,  fig.  9; 
north  end  of  Lamentation  mountain,  fig.  10;  posterior  ridges  of  Salton- 
stall mountain,  fig.   ii. 

532.  Dewey,  C. 

A   geological  map   of  the   county  of   Berkshire,   Massa- 
chusetts, and  of  a  small  part  of  the  adjoining  states. 
Am.  Jour.  Sci.,  (i)  viii,  i,  1824. 

The  northwest  corner  of  Connecticut  is  nrapped.  The  following 
formations  are  represented  in  color:  mica  slate,  primitive  limestone, 
quartz   rock. 

533.  Dorsey,  C.  W.,  and  Bonsteel,  J.  A. 

Soil  map  of  the  Connecticut  valley. 

U.  S.  Dept.  Agric,  Bur.  Soils,  Rept.  Field  Oper.  for 
1899,  1900. 

Connecticut  area  mapped  extends  from  Glastonbury  to  the  Massa- 
chusetts line,  with  a  width  of  5  to  lo  miles.  Different  types  of  soil 
are  shown  in  color.  Scale  i  inch^i  mile;  base  used  is  topographic  map 
of  1893. 

534.  Eggleston,  J.  W. 

Map  of  Woodstock  pond,  Connecticut. 
Am.  Jour.  Sci.,  (4)  xiii,  404,  1902. 
I  Locates    kames,    kettle-holes,    eskers,    and    terraces.      Scale    i    inchzz 

1,500   feet. 

535.  Emerson,  B.  K. 

Holyoke  folio. 

U.  S.  Geol.  Surv.,  Geol.  Atlas  of  U.  S.,  Folio  No.  50, 
1898. 

Topographic,  historical,  superficial  and  economic  geology  sheets  of  a 
strip  about  2>^  miles  wide  along  the  northern  edge  of  Connecticut, 
between  the  meridians  ■j2°  30'  and  73°.  Locates,  in  color,  the  following 
formations:  Washington  and  Becket  gneisses,  Hoosac  schist,  Chester 
amphibolite,  Sugarloaf  arkose,  Longmeadow  sandstone,  Holyoke  diabase, 
Chicopee  shale,  and  Glacial  deposits.     Scale  i   inch:=2  miles. 

536.  Emerson,  B.  K. 

Map  of  an  area  in  West  Norfolk. 

U.  S.  Geol.  Surv.,  Bull.  No.  159,  pl.  v,  1899. 

•  Detailed   geological   map,   with   section,    of   the   Norfolk   railroad   cut, 

also  map  showing  geology  of  region  adjoining.     Scale   i   inch=:i   mile. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  ^J 

537.  Emerson,  B.  K. 

Map  of  eastern  half  of  Housatonic  quadrangle. 

U.  S.  Geol.  Surv.,  Bull.  No.  159,  pi.  ix,  1899. 

Geological  map  of  that  part  of  Connecticut  found  on  the  Sandis- 
field  topographic  sheet;  includes  northern  halves  of  Colebrook  and  Noi- 
folk,  with  parts  of  Hartland  and  North  Canaan.  Scale  approximately 
Yi  inch  =1:1   mile. 

538.  Pippin,  E.  O. 

Soil  map  of  the  Connecticut  valley. 

U.  S.  Dept.  Agric,  Bur.  Soils,  Rept.  Field  Oper.  for 
1903,  1904. 

Map  of  soil  types  in  Massachusetts  and  Connecticut.  The  Connecti- 
cut area  mapped  is  on  the  Springfield,  Granville,  Hartford,  Granby, 
Middletown,  and  Meriden  topographic  sheets.  Base  map  is  the  topo- 
graphic atlas  of  Connecticut.     Scale   i    inch  =  i   mile. 

539.  Gregory,  H.  E. 

Map  showing  water-supplies  in  areas  of  limestone,  sand- 
stone, and  crystalline  rock,  of  Connecticut. 

U.  S.  Geol.  Surv.,  Water-Supp.  and  Irr.  Paper  No.,  114, 
fig.   17,  1905. 

Scale  I  inch  =  25  miles. 

539a.     Gregory,  H.  E.,and  Robinson,  H.  H. 

Preliminary  geological  map  of  Connecticut. 

Connecticut  State  Geol.  and  Nat.  Hist.  Surv.,  Bull.  No.  7. 

The  base  map,  which  was  prepared  especially  for  the  present  purpose, 
shows  contours  (loo  feet),  towns,  streams,  roads,  etc.  The  geological 
formations,  42  in  number,  are  shown  in  color.  Quarries  and  clay  pits 
are  also  located.  The  map  is  chiefly  designed  to  differentiate  rock 
types,  and  only  seven  formations  are  assigned  to  definite  ages.  Scale 
I    inch=:4  miles. 

(This  is  the  first  geological  map  of  Connecticut  issued  since  1842. 
See  Percival,  578.  It  is  based  on  data  supplied  by  several  workers, 
and  represents  the  present  state  of  knowledge  regarding  the  bed-rock 
geology  of  southern  New  England. —  Ed.") 

539b.     Gregory,  H.  E.,  and  Rice,  W.  N. 

Maps  and  diagrams  illustrating  Connecticut  geology. 
Connecticut  State  Geol.  and  Nat.  Hist.  Surv.,  Bull.  No.  6. 
(See  Rice  and  Gregory,   582a.) 

540.  Griswold,  L.  S.,  and  Davis,  W.  M. 

The   Connecticut  valley  Triassic  area. 

(See    Davis    and    Griswold,    528.) 

541.  Hall,  J.,  and  Logan,  W.  E. 

Geological  map  of  Canada  and  the  United  States. 

(See  Logan  and  Hall,  566.) 

542.  Hitchcock,  C.  H. 

Geological  map  of  United  States  and  part  of  Canada. 
Am.  Inst.  Min.  Eng.,  Trans.,  xv,  486,  1886. 


78  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

Laurentian,  Silurian  and  Triassic  areas  of  Connecticut,  are  indicated 
in  color.      Scale    Yi   inch=iioo  miles. 

543.  Hitchcock,  C.  H.,  and  Blake,  W.  P. 

Geological  map  of  the  United  States. 
(See  Blake  and  Hitchcock,  500.) 

544.  Hitchcock,   E. 

A  geological  map  of  the  Connecticut  valley. 

Am.  Jour.  Sci.,  (i)  vi,  facing  p.  i,  1823. 

Hand-colored  map  of  the  region  adjoining  the  Connecticut  valley 
from  Bellows  Falls  to  New  Haven.  The  area  mapped  in  Connecticut 
is  bounded  on  the  west  by  a  line  from  West  Hartford  to  Milford;  on 
the  east  by  a  line  from  Stafford  to  Saybrook.  Formations  shown  are 
granite  (at  Branford),  gneiss,  hornblende  slate,  mica  slate,  chlorite 
slate,  Primitive  greenstone,  argillite.  Old  Red  sandstcfne,  Secondary 
greenstone,  Coal  formation,  alluvion.  Section  near  New  Haven  shows 
dikes   in   Old    Red   sandstone.      Scale    i    inch=:7   miles. 

(The  boundaries  of  formations  as  shown  on  this  map  are  only  ap- 
proximately those  drawn  by  later  observers.     Map  is  dated   1822.  — Ed.) 

545.  Hitchcock,  E. 

Geological   map   of  Massachusetts. 
Am.  Jour.  Sci.,   (i)   x.xii,  pi.   i,  1832. 

Includes  a  strip  about  s  miles  wide  along  the  north  edge  of  Con- 
necticut. Represents  in  color  the  following  formations:  mica  slate, 
argillaceous  and  flinty  slate,  limestone,  scapolite  rocks,  gneiss,  horn- 
blende slate,  granite.  New  Red  sandstone,  greenstone.  Tertiary,  talcose 
slate.    Scale   approximately   4^   inches^30   miles. 

546.  Hitchcock,   E. 

Map  of  the  course  of  bowlders  and  striae  in  North  America. 

Assoc.  Am.  Geol.,  pi.  vii,  1843. 

Includes  northeastern  United  States,  and  a  portion  of  Canada. 

547.  Hitchcock,  E. 

Geological  map. 

Smithson.   Contr.   Knowl.,  ix,   pi.   iii,   1857. 

Surface  geology,  chiefly  of  the  Connecticut  valley.  Includes  a  strif 
10-15   miles  on   each  side  of   the   Connecticut   river.      Locates,   in   col«i, 

terraces,   beaches,   old   river   beds,   ledges   of  rock,   submarine   ricl^ ,   okI 

sea  bottom,  osars. 

548.  Hobbs,  W.  H. 

Geological  map  of  the  northwest  corner  of  Connecti- 
cut. 

Jour.  Geol.,  i,  pi.  ii,  1893. 

Map  includes  an  area  of  26  square  miles  in  the  northwest  corner 
of  the  state, —  one-third  of  the  town  of  Salisbury,  a  portion  of  eastern 
New  York,  and  southwestern  Massachusetts;  shows  areas  of  Everett 
schist,  Egremont  limestone,  Riga  schist,  Canaan  limestone.  Scale  i 
inch=:i   mile. 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGV.  79 

549.  Hobbs,  W.  H. 

Geological  map  of  portions  of  Sheffield,  Massachusetts, 
and  Salisbury,  Connecticut. 
Jour.  GcoL,  i,  785,  1893. 

Map  of  a  portion  of  the  Housatonic  valley  east  of  Mount  Wash- 
ington. The  geological  structure  is  indicated.  Shows  areas  of  quartzite,- 
Egremont  limestone,  Everett  schist,  Riga  schist,  Canaan  dolomite, 
tremolitic  limestone.     Scale    i    inch=:i    mile. 

550.  Hobbs,  W.  H. 

Geological   map   of  the   Pomperaug  valley,   Connecticut. 
U.  S.  Geol.  Surv.,  21st  Ann.  Rept.,  pt.  iii,  pi.  i,  1901. 

Locates,  in  color,  the  following  formations:  Schist,  gneiss,  granite, 
conglomerate,  sandstone,  shale,  basalt  (anterior),  shale  and  limestone 
(anterior),  basalt  (main),  basalt  (vesicular);  also  fault  lines.  Scale 
I    inchiz:!    mile;   contour   interval   20    feet. 

551.  Hobbs,  W.  H. 

Areas  occupied  by  the  Newark  system. 

U.  S.  Geol.  Surv.,  21st  Ann.  Rept.,  pt.  iii,  pi.  ii,  1901. 

Trap  and  sediments  of  the  Newark  system  in  Connecticut  located. 
Scale    I    inchr=i20   miles. 

552.  Hobbs,  W.  H. 

Geological  map  of  the  vicinity  of  South  Britain,  Con- 
necticut. 

U.  S.  Geol.  Surv.,  21st  Ann.  Rept.,  pt.  iii,  pi.  viii,  1901. 

Locates,  in  color,  the  following  formations:  Sandstone,  conglomerate, 
gneiss  (higher,  lower),  arkose  (higher,  lower),  shale  (anterior),  basalt 
(higher,  lower,  lowest),  shale  (posterior);  also  fault  lines  and  cold 
springs.      Scale   4   inches:z:i   mile. 

553.  Hobbs,  W.  H. 

Geological  map  of  Orenaug  hill,  Woodbury,  Connecti- 
cut. 

U.  S.  Geol.  Surv.,  21st  Ann.  Rept.,  pt.  iii,  pi.  x,  1901. 

Locates,  in  color,  the  following  formations:  Gneiss  (higher,  lower), 
arkose  (higher,  lower),  basalt  (higher,  lower,  lowest),  shale  (posterior), 
hornblende  rock,  sandstone,  conglomerate;  also  cold  springs  and  faults. 
Scale  I   inchzi:j4   mile. 

554.  Hobbs,  W.  H. 

•  Topographic  map  of  the  Pomperaug  valley,  Connecticut. 
U.  S.  Geol.  Surv.,  21st  Ann.  Rept.,  pt.  iii,  pi.  xiv,  1901. 
Embraces   an   area   7H   miles   east   and   west  by    10   miles   north    and 
south   (approximately).     Scale  i  inch^ri  mile;  contour  interval  20  feet. 

555.  Hobbs,  W.  H. 

]\Iap  to  illustrate  the  supposed  stages  in  the  erosion  his- 
tory of  the  Pomperaug  basin,  in  the  cycle  which  was  ini- 


8o  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

tiated  by  the  elevation  and  tilting  of  the  Cretaceous  plain 
of  erosion. 

U.  S.  Geol.  Surv.,  21st  Ann.  Rept.,  pt.  iii,  pi.  xvii,  1901. 

556.  Hobbs,  W.  H. 

Maps  and  diagrams,  Pomperaug  valley. 

U.  S.  Geol.  Surv.,  21st  Ann.  Rept.,  pt.  iii,  1901. 

Newark  areas  of  southern  New  England,  p.  31;  Pomperaug  valley  and 
vicinity,  p.  33;  trap  riSges  near  South  Britain,  p.  35;  trap  ridges  near 
Woodbury,  p.  36;  Oliver  Mitchell  brook,  p.  41;  development  of  the 
anterior  basalt,  p.  43 ;  development  of  the  main  basalt,  p.  45 ;  Red 
spring,  p.  52;  Spring  house  section,  p.  86;  western  basin  wall,  p. 
87;  contact  along  fault,  p.  88;  Mitchell's  spring,  western  boundary  of 
East  hill,  p.  91;  William  Curtis  place,  p.  92;  fault  bounding  Horse  and 
Pine  hills,  p.  102;  Castle  Rock,  p.  iii;  southern  part  of  the  Pomper- 
aug basin,  p.  118;  strike  and  dip  observations  in  crystalline  rocks,  p. 
123;  topography  of  ridges,  Southbury,  p.  150;  deep  inglenook,  Square 
Rock,  p.  151;  oblique  inglenook.  South  Britain,  p.  152;  fault  system  of 
the  Pomperaug  valley,  pi.  ix;  relation  of  drainage  to  faults,  pi.  xv; 
structure   of   the   basin   of  the   Shepaug  river,   pi.   xvi. 

557.  Hobbs,  W.  H. 

River  map  of  the  area  surrounding  the  Pomperaug  val- 
ley. 

Jour.   Geol.,  ix,  477,   1901. 

Rivers  have  been  traced  from  the  U.  S.  Geological  Survey  atlas  sheets, 
which  are  on  a  scale  of  one  inch  to  the  mile.  Observed  faults  (extended) 
are  shown,  as  are  also  the  inferred  approximate  positions  of  joint  or 
fault  planees.     Scale   Yi   inchz=i   mile. 

558.  Hobbs,  W.  H. 

River  map   of   Connecticut. 

Jour.  Geol.,  ix,  468,  1901. 

This  map,  reduced  from  the  two-sheet  topographic  map  of  Con- 
necticut, shows  the  prominent  "  trough  lines  "  and  their  trend.  Scale 
I  inch=i2j^  miles. 

559.  Hobbs,  W.  H. 

Map   of  the    (Farmington)    Still   river  and  vicinity. 

Geol.  Soc.  America,  Bull.,  xiii,  fig.  i,  1901. 

Area  immediately  around  Torrington,  Winsted,  and  Robertsville. 
Locates  drift  barriers,  limestone,  ponded  areas.  Scale  Yi  inch:=i 
mile;  contour  interval,  20  feet. 

560.  Hobbs,  W.  H. 

Map  of  the  (Housatonic)  Still  river  and  vicinitj'. 
Geol.  Soc.  America,  Bull.,  xiii,  figs.  2,  3,  1901. 

Area  immediately  around  Danbury,  Bethel,  and  New  Milford.  Locates 
drift,  limestone,  schist.  Sketch  map  showing  development  of  Still  river. 
Scale    Yi    inchzzi    mile;   contour   interval,    20    feet. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  8l 

S6i.     Hobbs,  W.  H. 

Geological  map  of  the  tungsten  mine  near  Long  hill, 
Connecticut. 

U.  S.  Geol.  Surv.,  22d  Ann.  Rept.,  pt.  ii,  pi.  i,  1901. 

Locates,  in  color,  hornblende  gneiss,  crystalline  limestone,  pegmatites, 
mica  schist,  quartz-hornblende-scheelite-epidote  rock;  also  strike,  dip, 
joints.     Scale   iJ4  inches^isoo  feet;  contour  interval  10  feet. 

562.  Hobbs,  W.  H. 

Geological  map  of  the  vicinity  of  the  Trumbull  mine, 
Connecticut. 

U.  S.  Geol.  Surv.,  22d  Ann.  Rept.,  pt.  ii,  pi.  ii,  1901. 

Locates  schist-gneiss  complex,  hornblende  gneiss,  crystalline  lime- 
stone.    Scale   iJ4   inches z=  I   mile;   contour  interval   20   feet. 

563.  Hobbs,  W.  H. 

Sketch  map  of  the  Pomperaug  valley,  showing  the  dis- 
tribution of  the  terrace  deposits  and  of  basalt  trains. 
Am.  Jour.  Sci.,  (4)  xiv,  401,  1902. 

Scale   I   inchz=2  miles. 

564.  Hobbs,  W.  H. 

Drainage  system  of  Connecticut. 

Geol.  Soc.  America,  Bull.,  xv,  pi.  46,  1904. 

Shows  rivers  of  Connecticut,  and  network  of  "lineaments  "  which 
control  their  course.     Scale   i   inch:::  10   miles. 

565.  Hovey,  E.  O. 

Map  of  the  trap  ridges  of  the  East  Haven  region. 

Am.  Jour.  Sci.,  (3)  xxxviii,  pi.  ix,  1889. 

Locates  Pond  Rock  (Saltonstall  ridge),  and  the  smaller  ridges  within 
two  miles  of  it;  also  south  end  of  Totoket  mountain  and  boundary  of 
Triassic.     Scale  Y2.  inch  ^5,000  feet. 

566.  Logan,  W.  E.,  and  Hall,  J. 

Geological  map-  of  Canada  and  the  United  States,  from 
Hudson  Bay  to  Virginia,  and  from  the  Missouri  river  to 
Newfoundland.  Montreal,  1866;  also  on  smaller  scale  in 
atlas  to  "  Geology  of  Canada,"  1863. 

Review:  Am.  Jour.  Sci.,   (2)   xlix,  294-298,   1866. 

Connecticut  is  left  blank  except  the  Connecticut  valley  "  Trias,"  the 
limestone  areas  marked  "Levis"  (Lower  Silurian),  and  the  schist  of 
Salisbury  marked  "  Lauzon."  A  carefully  made  colored  map.  Scale 
approximately    i    inch  zz 25    miles. 

567.  Leper,  S.  W.,  and  Davis,  W.  M, 

Sketch  map  of  about  10  square  miles  near  Meriden. 
(See  Davis  and  Loper,  529.) 
6 


n. 


82  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [BuU. 

568.  Loughlin,  G.  F. 

Map  of  Glacial  deposits  in  central  Connecticut. 

Connecticut  State  Geol.  Nat.  Hist.  Surv.,  Bull.  No.  4, 
pi.  i,  1905- 

Map  of  area  from  Massachusetts  line  to  New  Haven,  and  from  Mid- 
dletown  to  Southington.  Areas  of  till,  sand,  high  gravels,  alluvium, 
clay  of  economic  value,  are  shown.  Scale  approximately  i  inch=:2 
miles. 

569.  Lyman,  B.  S. 

A  conjectural  map  of  the  Connecticut  and  Massachu- 
setts New  Red  sandstone. 

Am.  Phil.  Soc,  Proc,  xxxiii,  202,  1894. 
Scale  I   inch  =:  1 6  miles. 

570.  McGee,  W.  J. 

Map  of  the  United  States,  exhibiting  the  present  status 
of  knowledge  relating  to  the  areal  distribution  of  geologic 
groups.     (Preliminary    compilation.) 

U.  S.  Geol.  Surv.,  5th  Ann.  Rept.,  for  1883-84,  pi.  ii, 
1885. 

Locates  the  eastern  and  western  highlands  of  Connecticut  as 
Archaean  except  a  small  area  of  Silurian  in  the  northwestern  part  of  the 
state.      Locates    also    the    central   Jurassic-Triassic    formation. 

571.  Maclure,  W. 

Geological  map  of  the  United  States  east  of  the  Missis- 
sippi, accompanying  "  Observations  on  the  geology  of 
the  United  States." 

Am.  Phil.  Soc,  Trans.,  vi,   1809. 

Connecticut  colored  as  Primitive  rocks,  or  uncolored,  except  two 
areas  of  Secondary,  one  reaching  from  Long  Island  Sound  to  Hart- 
ford, the  other  an  oval  area  west  of  the  Naugatuck.  Base  map  used 
is  by  Samuel  G.  Lewis.     Scale  approximately  i   inch  =r 90  miles. 

(This  is  the  earliest  geological  map  of  the  eastern  part  of  the 
United   States.— Erf.) 

572.  Maclure,  W. 

Geological  map  of  the  United  States,  accompanying 
"  Observations  on  the  Geology  of  the  United  States." 

Am.  Phil.  Soc,  Trans.,  (new  series)  i,  pi.  i,  1818,  Abra- 
ham Small,  Philadelphia,  1817. 

In  this  second  edition  of  Maclure's  map  the  same  formations  are  in- 
dicated in  Connecticut  as  were  shown  in  the  first  edition;  viz..  Primitive 
and  Old  Red  sandstone.  (This  map  reproduced  in  1822  by  P.  Cleave- 
land,  in  "An  Elementary  Treatise  on  Mineralogy  and  Geology,"  2d 
ed.,  Boston;  and  by  Charles  Moxon  in  "The  Geologist,"  for  1843, 
London. —  Ed.)     Scale  i  inchrzi20  miles. 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  83 

573.  Marcou,  J. 

Geological  map  of  the  United  States  and  the  British 
provinces  of  North  America. 

Boston,  Gould  and  Lincoln,  1853;  Petermann,  Mittheil., 
i,  pi.  XV,  1855;  Soc.  Geol.  France,  (2d  series)  »ii,  1853; 
Geology  of  North  America,  Zurich,  1858. 

Triassic  shown  as  New  Red  sandstone  or  Keuper  containing  an  area 
of  copper  trap.  The  rest  of  the  state  shown  as  eruptive  and  metamorphic 
rocks.     Scale  approximately  i   inch  =390  miles. 

(The  formations  are  poorly  located  and  poorly  bounded.  There 
seems  little  excuse  for  such  crude  mapping  of  Connecticut  geology  13 
years  after  the  publication  of  Percival's  Report. — Ed.) 

574.  Martin,  D.  S. 

Geological  map  of  New  York  city  and  vicinity,  accom- 
panied by  a  pamphlet  of  explanatory  text.  New  York, 
1888. 

A  part  of  Connecticut  west  of  a  line  from  Greenwich  to  Banksville  is 
marked  "  Atlantic  or  Manhattan  gneiss,  age  disputed."  A  belt  of  lime- 
stone projects  into  this  area  from  the  north.     Scale  i  inch=:2  miles. 

575.  Mather,  W.  W. 

A  geological  map  of  Windham  and  New  London  coun- 
ties. 

Sketch  of  geology  of  New  London  and  Windham  coun- 
ties, by  W.  W.  Mather,  1832. 

Ten  bed-rock  formations  are  shown  in  color,  as  are  also  quarries 
and  mines  of  stone,  iron,  peat,  clay,  plumbago,  and  mineral  springs. 
Two  sections  accompany  the  map.     Scale  approximately  i  inch  :^  5  miles. 

576.  Merrill,  G.  P. 

Map  of  the  marble  regions  of  western  New  England. 
Smithson.   Rept.,  pi.  vii,   1886. 

Includes  the  western  part  of  Connecticut.  The  following  forma- 
tions are  indicated:  Archaean  or  Primitive,  Potsdam,  limestone,  slate 
or  gneiss. 

577.  Percival,  J.  G. 

Map  of  Connecticut  —  east  and  west  sections  of  Ken- 
sington, in   Berlin. 

Am.  Jour.  Sci.,  (i)  v,  42,  1822. 

Gives  locality  of  sulphate  of  barytes,  coal,  lead,  zeolites,  shale; 
greenstone  and  sandstone  ridges,  alluvial  flat;  stalactites,  quartz  crys- 
tals, granite  block,  vein  of  carbonate  of  lime;  mills,  bridges,  roads,  etc. 

578.  Percival,  J.  G. 

A  geological  map  of  Connecticut. 

Report  on  the  geology  of  the  state  of  Connecticut. 
Published  by  the  Legislature,  New  Haven,  1842. 

The    base    map    shows    rivers,    lakes,    divides    between    streams,    and 


84  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.       [BuU. 

town  boundaries.  The  geological  boundaries  are  shown  by  dotted  lines. 
The  Secondary  formations  are  separated  from  the  Primary,  and  the 
divisions  of  the  Primary  are  indicated  by  numbers,  by  Roman  and 
Greek  letters,  and  by  various  other  characters.  The  trap  of  the 
Secondary  and  of  the  Primary  are  indicated,  even  to  the  small  dikes. 
Scale  approximately  i  inch ^5^/2  miles. 

(Considering  the  base  map  used  and  the  area  covered,  probably  no 
more  accurate  piece  of  geological  mapping  has  ever  been  ■  accomplished 
by   a   single   individual. — Ed.) 

579.  Petros  (C.  A.  Lee). 

Map  of  two  lakes,   Salisbury. 
Am.  Jour.  Sci.,  (i)  v,  34-37,  1822. 

Map  of  two  lakes  (Northeast  and  Little  ponds) ;  showing  islands, 
swamp   lands,   moving  bowlders. 

580.  Putnam,  B.  T. 

Map  showing  location  of  iron  mines  east  of  the  Hudson 
river. 

Census  of  U.  S.,  loth  Rept.,  xv,  fig.  8,  p.  83,  1886. 

The  map  covers  a  portion  of  Litchfield  county;  southwestern  por- 
tion of  Berkshire  county,  Massachusetts,  and  Dutchess  and  Columbia 
counties.  New  York.  Shows  one  mine  in  Connecticut,  that  in  Kent. 
Scale  I  inch=:i  mile. 

581.  Pynchon,  W.  H.  C. 

Map  of  the  northwestern  corner  of  Connecticut. 

Connecticut  Quart.,  v,  279,  1899. 

Includes  towns  of  Salisbury,  Canaan,  North  Canaan,  Sharon,  and 
Cornwall.  Shows  topographic  features  and  location  of  iron  mines  and 
furnaces. 

582.  Rice,  William  North. 

Maps  of  Triassic  areas. 

Connecticut  Board  of  Agric,  Rept.  for  1903,  98,  107, 
1904. 

•One  map  of  western  Connecticut  and  Massachusetts,  showing  Trias- 
sic; another  of  trap  areas  in  the  vicinity  of  Hartford,  Middletown,  and 
Meriden. 

582a.     Rice,  W.  N.,  and  Gregory,  H.  E. 

Maps  and  diagrams  illustrating  Connecticut  geology. 
Connecticut    State    Geol.-  and    Nat.    Hist.    Surv.,    Bull. 
No.  6. 

Figure  i.  Geological  map  of  central  Connecticut.  Highland  and 
lowland  distinguished.  Scale  1  inchi=io  miles.  Plate  xiv.  Preliminary 
geological  map  of  Connecticut.  A  simplified  edition  of  539a.  Scale  i 
inch  1=6  miles.  Plate  xv.  Triassic  areas  of  eastern  North  America. 
Scale  approximately  i  inch ^120  miles.  Plate  xxiv.  Map  showing 
trap  sheets  and  faults  in  central  part  of  Triassic  area  of  Connecticut. 
A  clearly  drawn  map  in  black  and  white,  slightly  altered  from  Davis, 
527.  Scale  I  inch^2  miles.  Figure  15.  Sketch  map  showing  faults 
near  East   Berlin.      Scale    i    inch=ri2oo   feet.      Figure    17.   Relations   of 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.-  85 

trap  sheet,  fault  and  river  at  Tariffville.  Figure  19.  Map  of  glacial 
striae  in  Connecticut.  Scale  approximately  i  inch  1^20  miles.  Figures 
20-22.  Three  maps  of  the  Farmington  river  and  tributaries,  showing 
pre-Glacial  drainage,  Glacial  modifications,  and  present  stage  of  de- 
velopment.    Scale  approximately   i   inch:=:2o  miles. 

582b.     Robinson,  H.  H.,  and  Gregory,  H.  E. 

Preliminary  geological  map  of  Connecticut. 
Connecticut  Geol.  and  Nat.  Hist.  Surv.,  Bull.  No.  7. 
(See   Gregory  and   Robinson,   5393.) 

583.  Russell,  I.  C. 

Maps  of  the   Connecticut  valley  sandstone  areas. 

U.  S.  Geol.  Surv.,  Bull.  No.  85,  pis.  i,  iii,  1892. 

Map  of  areas  occupied  by  Newark  system.  Scale  i  inch  ::^  120  miles. 
Map  of  Triassic  of  the  Connecticut  valley,  giving  sedimentary,  trap 
rock,  and  pre- Newark  areas.     Scale   yi   inch  1=5  miles. 

584.  Smith,  Alfred. 

The  Connecticut  river  valley. 
Am.  Jour.  Sci.,  (i)  xxii,  205,  1832. 

Includes  a  strip  about  forty  miles  wide  through  the  central  part  of 
Connecticut,  showing  the  extent  of  the  Primitive  and  Secondary  forma- 
ations.      Scale   2^4    inches=:40  miles. 

585.  United  States  Geological  Survey. 

Map  of  the  United  States,  exhibiting  the  progress  made 
in  the  geographic  survey. 

U.  S.  Geol.  Surv.,  Sth  Ann.  Kept.,  pi.  i,   1883-84. 

Shows  the  triangulation  areas  of  Connecticut;  also  the  area  surveyed 
by  other  organizations  than  the  U.  S.  Geological  Survey. 

586.  United   States   Geological   Survey. 

Topographical  atlas  of  the  state  of  Connecticut. 

United  States  Geological  Survey  in  cooperation  with 
the  state  of  Connecticut.     1893. 

An  atlas  consisting  of  33  sheets  covering  Connecticut  and  parts  of 
adjoining  states.     1893.     Scale  i  inchi^i  mile;  contour  interval,  20  feet. 

(This  is  the  only  complete  atlas  of  Connecticut  in  existence.  For  a 
history  and  description  of  this  map,  see  Connecticut  State  Geol.  Nat. 
Hist.  Surv.,  Bull.  No.  7.  The  map  may  be  obtained  from  the  State 
Librarian,  either  bound  or  in  separate  sheets. — Ed.) 

587.  United  States  Geological  Survey. 

Topographic  map  of  Connecticut. 

United  States  Geological  Survey  in  cooperation  with 
the  state  of  Connecticut.     1893. 

A  two-sheet  wall  map.  Scale  i  inch  1^2  miles;  contour  interval  100 
feet. 

(Map  may  be  obtained  from  the  State  Librarian  unmounted  or 
mounted  on  muslin  with  rollers. — Ed.) 


86  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY. 

588.  Walcott,  C.  D. 

Geologic  map  of  portions  of  eastern  New  York,  western 
Vermont,  western  Massachusetts,  and  northwestern  Con- 
necticut. 

Am.  Jour.   Sci.,    (3)   xxxv,  pi.   iii,   1888. 

Formations  mapped  are:  pre-Cambrian,  Cambrian  (Georgia,  Pots- 
dam); Calciferous,  Chazy,  Trenton;  Hudson;  Quaternary.  Scale  i  inch 
mo    miles. 

589.  Westgate,  L,  G. 

Map  of  a  granite-gneiss  area. 
Jour.  Geol.,  vii,  639,  1899. 

Map  of  the  Maromas  granite-gneiss  area  on  the  Connecticut  river, 
below  Middletown.  Shows  inclusions,  quarries,  dip  and  strike.  Scale 
I    inchrri    mile. 

590.  Whittle,  C.  L.,  and  Davis,  W.  M. 

Map  of  the  Triassic  area  in  Connecticut. 
(See  Davis  and  Whittle,  530.) 

591.  Whittle,  C.  L.,  and  Davis,  W.  M. 

Maps  of  Triassic  trap  ridges. 
(See   Davis  and  Whittle,   531.) 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  8/ 


INDEX 


The  bcK>ks  or  papers  referred  to  are  indicated  by  the  name  of  the 
author  and  the  serial  number.   Numbers  from  500  upward  refer  to  maps. 

A 
Acid  dikes  —  Hovey,  163. 
Actinolite,  Salisbury  —  Lee,  185. 
Agassiz,  J.  L.  R.,  Age  of  the  Connecticut  valley  sandstones  — -  Agassiz,  I. 

Marcou's  "  Geology  of  North  America  "  —  Agassiz,  2. 

Reply  to  Agassiz  on  Marcou's  "  Geology  of  North  America  "  — 
Dana,  28. 
Agate,  Berlin  —  Percival,  228. 

Age  of  Connecticut  valley  sandstones  —  Agassiz,  I ;  Akerly,  3. 
Age  of  gorges  through  trap  ridges  —  Emerson,  no. 
Age  of  sandstone  of  the  United  States  —  Jackson,  173. 
Akerly,  S.,  Geologj'  of  the  Hudson  river  and  vicinity  —  Akerly,  3. 
Albite,  Haddam  Neck  —  Bowman,  8. 
Alluvium,  described  —  Percival,  229. 
Amphibolite,  Chester  —  Emersc«i,  112. 

Connecticut  —  Rice  and  Gregory,  243a. 
Ammosaurus  —  Marsh,  203. 
Analyses.    See  Chemical  analyses. 
Anchisaurus,  description — Marsh,  202. 

restoration  —  Marsh,  205. 
Anorthite,  chemical  analysis  —  Hawes,  130. 
Apatite,  Canaan  —  Hobbs,  153. 

Haddam  Neck  —  Bowman,  8. 

Trumbull  —  Hobbs,  156. 
Aramamit  river,  map  —  Davis  and  Whittle,  531. 

trap  sheets  —  Davis,  100. 
Archaean  axes  of  eastern  North  America  —  Dana,  70. 
Archsean  limestone  and  other  rocks  in  Norfolk  —  Dana,  69. 
Argillaceous  slate  —  Hitchcock,  138. 
Arkose,  Sugarloaf — Emerson,  112. 
Asbestos,  production.  282. 
Ashbed,  Meriden  —  Davis,  87,  98;    Emerson,   in;    Rice  and  Gregory, 

243a. 
Ashford,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 
Augite,  chemical  analysis  —  Hawes,  130. 

Salisbury  —  Lee,  185. 
Avon,  geolog>'  —  Percival,  229 ;    Rice  and  Gregory,  243a. 

B 

Baileyville,  basic  dike  on  Beseck  lake  —  Griswold,  125. 
Barbour,  E.  H.,  Ancient  inhabitants  of  the  Connecticut  valley  —  Bar- 
bour, 4. 
Barite  —  Rice  and  Gregory,  243a. 

Barkhamsted,  corundum  and  graphitic  essonite  —  Emerson,  114. 
geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 


88  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.       [Bull. 

Barytes,  production,  282. 

sulphate  of,  Kensington  —  Percival,  228. 
Basalt,  altered,  Saltonstall  and  South  Durham  —  Hawes,  130. 

olivine.  Pine  Hill  and  South  Durham  —  Hobbs,  155. 

tachylite,  Meriden  —  Emerson,  in. 

Wintergreen  lake  —  Hawes,  128. 
Basic  dike  in  the  Triassic  —  Griswold,  125. 
Becket  gneiss  —  Rice  and  Gregory,  243a. 
Beckley  station,  map  —  Davis,  518. 

Triassic   formation  —  Davis,  82;    Rice   and   Gregory,  243a. 
Bed  of  the  Connecticut  river  —  Hitchcock,  140. 
Belodont  reptile  —  Marsh,  207. 

Benjamin,  H.  W.,  Scenes  around  Granby  —  Benjamin,  5. 
Berkshire  schist  —  Rice  and  Gregory,  243a. 
Berlin,  clays  —  Loughlin,  190. 

clay-working  —  Ries,  245. 

coal  —  Hitchcock,  136. 

fossils  —  Loper,   189. 

geology — Percival,  229;    Rice  and  Gregory,  243a. 

map  —  Loughlin,  568;    Percival,  577. 

mines  —  Percival,  228. 

sulphate  of  barytes  —  Percival,  228. 
Bernardston  loam  —  Fippin,  116. 
Beryl,  Haddam — Silliman,  263;  Bowman,  8. 

Salisbury  —  Lee,  185. 
Beseck  lake,  dike  at  outlet  —  Griswold,  125. 
Bethany,  geology — Percival,  229;    Rice  and  Gregory,  243a. 
Bethel,  map  —  Hobbs,  560. 

Bethlehem,  geology  —  Percival,  229;    Rice  and  Gregory,  243a. 
Bibliography,  concretions  —  Sheldon,  256. 

minerals  —  Brace,  9. 

Triassic  —  Russell,  253. 
Biography  —  Dana,  J.  D.,  76. 

Hitchcock,  E.,  148. 

Marsh,  O.  C.,  208. 

Mather,  W.  W.,  214. 

Percival,  J.  G.,  230. 

Shepard,  C.  U.,  259. 

Silliman,  B,  274. 
Birds,  foot-marks  —  Hitchcock,  139. 
Bismuth,  production,  282. 
Bitumen,  in  trap  —  Dana,  44;    Percival,  229;    Shepard,  258. 

production,  282. 
Black  Rock,  magnetic  declination  —  Gannett.  121. 
Blake,  W.  P.,  Geological  map  of  the  United  States  —  Blake,  500. 

Glacial  phenomena  of  Mill  Rock   (abstract)  —  Blake,  7. 

Review    of    Marcou's    geological    map    of   the    United    States  — 
Blake,  6. 
Bloomfield,  fossils  —  Loper.  189. 

geology — ^  Percival,  229:     Rice   and   Gregory,  243a. 
Bluff  Head,  fossils  —  Loper,  189. 

Bolton,  geology  —  Percival,  229 ;  Rice  and  Gregory,  243a. 
Bolton  schist  —  Rice  and  Gregory,  243a. 
Bowlders,  between  Guilford  and  Leete  Island  —  Wells.  294. 

glacial  —  Rice  and  Gregon,',  243a  ;    Wells,  293. 

map  —  Hitchcock,  5j6. 

Montville  —  Wells,  294. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  89 

Norwich  —  Wells,  293. 

remarks  —  Dobson,  104. 

Salisbury  —  Lee,  186. 

Woodbridge  —  Hubbard,  164. 

See  also  Glaciers. 
Bowman,    H.    L.,    Occurrence    of    Minerals    at    Haddam    Neck — Bow- 
man, 8. 
Bozrah,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 

tourmaline  —  Webster,  290. 
Brace,  J.  P.,  Observations  of  minerals,  Litchfield  —  Brace,  9. 
Bradley,  F.  H.,  Geological  chart  of  the  United  States  —  Bradley,  501. 
Branchville,  mine —    Dana,  11. 

minerals  —  Brush  and  Dana,  11. 
Branford,  excursions  —  Dana,  71. 

geology — 'Percival,  229;    Rice  and  Gregory,  243a. 

map  —  Hitchcock,  544. 

trap  ridges  —  Hovey,  162. 
Branford  granite-gneiss  —  Rice  and  Gregory,  243a. 
Brick,  manufacture  —  Loughlin,  190. 

production  —  282. 
Bridgeport,  geology  —  Percival,  229;    Rice  and  Gregory,  243a. 

magnetic  declination  —  Gannett,  121. 

termination  of  Green  mountain   system  —  Marcou,   198. 
Brigham,  W.  T.,  Historical  notes  of  the  earthquakes  of  New  England  — 

Dana,  32. 
Brirnfield  schist  —  Rice  and  Gregory,  243a. 

Bristol,  copper  mine  —  Hulbert,  165;    Rice  and  Gregory,  243a;    Whit- 
ney and  Silliman,  297. 

fossil  trees  —  Silliman,  277. 

geology  —  Percival,  229  ;    Rice  and  Gregory,  243a. 

sewage  conditions  —  Rafter,  240. 
Bristol  granite-gneiss  —  Rice  and  Gregory,  243a. 
Brongniart,  A.,  Miscellaneous  observations  —  Brongniart,   10. 
Brookfield,  geology  —  Percival,  229;    Rice  and  Gregory,  243a. 
Brookfield  diorite  —  Rice  and  Gregory,  243a. 
Brooklyn,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 
Brown  hematite  deposits  of  eastern  New  York  and  western  New  Eng- 
land—  Eckel,  108. 
Brush,  G.  J.,  and  Dana,  E.  S.,  New  and  remarkable  mineral  locality  at 

Branchville  — Brush  and  Dana,  11. 
Building  stone  of  the  United  States  —  Merrill,  217. 
Bureau  of  soils,  work  in  Connecticut  —  Gregory,  124c. 
Burlington,  geology — Percival,  229;    Rice  and  Gregory,  243a. 
Burr,  H.  T.,  Physical  geography  of  the  Connecticut  lowland  —  Burr,  12. 

C 

Calcite,  Trumbull  —  Hobbs,  156. 

Calcium  carbonate,  sinter,  tufa,  Salisbury  —  Lee,  185. 

Cambrian,  Canaan  —  Walcott,  288. 

Canaan,  apatite  —  Hobbs,  153. 

augite  —  Hitchcock,  137. 

faults  —  Hobbs,  152. 

geology  —  Percival,  229;    Rice  and  Gregory,  243a. 

gneiss  —  Dana,  37. 

hessonite  —  Hobbs,  153. 

iron  —  Hitchcock,  137. 

kaolin  —  Dana,  6;^. 


90  CONNECTICUT    GF.OL.    AND    NAT.    HIST,    SURVEY.        [BuU, 

limestone  —  Dana,  37;    Hobbs,  150,  151. 

limestone  quarries  —  Ries,  244. 

map — Pynchon,  581. 

marble  —  Newberry,   220.        ' 

mica  schist  —  Dana,  2)7 • 

minerals  —  Brace,  9. 

mines  —  Pynchon,  238. 

pseudomorphs  —  Hobbs,  149. 

quartzite  —  Dana,  35,  yj '■,    Walcott,  288. 

stratified  rocks  —  Dana,  62. 

tremolite  —  Hitchcock,  137. 

wedging  action  of  intruding  material  —  Dana,  (A. 
Canterbury,  geology — Percival,  229;    Rice  and  Gregory,  243a. 
Canterbury  granite-gneiss  — Rice  and  Gregory,  243a. 
Canton,  geology  —  Percival,  229;    Rice  and  Gregory,  243a. 
Castle  Rock,  glacial  action  —  Hobbs,  158. 
Cat  Hole  peaks,  trap  sheets  —  Davis,  100. 
Catopterus  gracilis.  Little  Falls  —  Davis,  "j"]. 
Cement,  Southington  —  Lowrey,  191. 
Centerville,  map  — Dana.  513. 
Chalcedony,  Berlin  —  Percival,  228. 
Chalcopyrite,  Trumbull  —  Hobbs,  156. 
Chalybeate  springs,  Litchfield  —  Pierce,  233. 
Chamberlin,  Second  glacial  epoch  —  Dana,  60. 
Champlain  period,  Connecticut  valley — Dana,  58. 
Chapin,  A.  B.,  Junction  of  trap  and  sandstone  at  Wallingford  —  Chapin, 

Chapin,  J.  H.,  Hanging  Hills  —  Chapin,  14. 

Topographic  survey  of  Connecticut — Chapin,   16. 
Trap  ridges,  Meriden  —  Chapin,  15. 
Chapinville,  mines  —  Putnam,  235. 

Chaplin,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 
Chatfield,  mines  —  Putnam,  235. 
Chatham,  coal  —  Hitchcock,  136. 
cobalt  —   Loomis,  188. 

geology  —  Percival,  229;    Rice  and  Gregory,  243a. 
Chauncy  peak,  map  —  Davis,  523,  529,  531. 

trap  sheets  —  Davis,  100;    Rice  and  Gregory,  243a. 
Chemical  analyses,  anorthite  —  Hawes,  130. 

basalt,     Meriden  — Pratt,     282      (1898-99);     Middlefield  —  Pratt 
(Gregory,  U.  S.  G.  S.,  Bull.  165,  p.  176)  ;  Plainville  —  Souther, 
282    (1898-99);    Saltonstall  —  Hawes,    128;    South    Durham  — 
Hawes,  128. 
Branchville  minerals  •— Brush   and  Dana,   11. 
clay  —  Loughlin,  190;    Ries,  245. 
diabase,    West    Rock  —  Dana,    21;     Hawes,    128;     Wintergreen 

lake  —  Hawee,  128. 
feldspar  —  Hawes,  130. 
granite,  Millstone  point,  Stonv  Creek  —  Kemp,  177;  Waterford  — 

282   (1898-99). 
keratophyre.  Fair  Haven  —  Hovey,  163. 
limestone,    Canaan  — 282    (1898-99);    Fairfield  — 282    ( 1 889-90)  ; 

Ries,  244. 
olivine,   Pine  hill,    South    Britain  —  Hobbs,    155. 
sandstone,  Cromwell,  Portland  — 282  (1896-97,  iS98-99)- 
tachylite,  Meriden  —  Emerson,  iii. 

trap  —  Dana,   21;     Hawes.    128,    129;     Pratt,   282;     Souther,   282 
(1898-99). 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  9I 

water  —  Gregorj-,  123. 
Cheshire,  geology —  Percival,  229;    Rice  and  Gregory,  243a. 

trap  sheets  —  Davis,   100. 
Chester,  geology — Percival,  229;    Rice  and  Gregory,  243a. 
Chicopee  gravel  loam  —  Pippin,  116. 
Chlorine,  distribution  —  282. 
Chlorite,  Salisbury  —  Lee,  185. 

Chloritic  formation  —  Hawes,   129;    Rice  and  Gregory,  243a. 
Clay,  chemical  analyses- — Loughlin,  190. 

Connecticut  —  Ries,  245  ;    Rice  and  Gregory,  243a. 

investigation  planned  —  Rice,  242. 

map  —  Loughlin,  568. 

production  —  282. 

Salisbury  —  Lee,  185. 

value  of  —  Ries,  245. 
Clays  and  claj^  industries  of  Connecticut  —  Loughlin,  190. 

of  the  United  States — ^Ries,  245. 
Clayton,  clay  —  Loughlin,  190. 

Clinton,  geology — Percival,  229;  Rice  and  Gregory,  243a. 
Coal,  Berlin  —  Hitchcock,  136;    Percival,  228. 

Chatham — Hitchcock,  136. 

Ellington  —  Hitchcock,    136. 

Middletown  —  Hitchcock,  136. 

Somers  —  Hitchcock,   136. 

Southington  —  Silliman,  263. 

Suffield  —  Silliman,  263. 
Coal  formation  of  Connecticut  —  Hitchcock,  138. 
Coal  mine  —  Percival,  228. 
Cobalt  —  Loomis,    188;    Maclure,    196;    mineral    resources,    282    (1882, 

83-84). 
Cochrane,  E.  H.,  Rocks  and  minerals  of  Connecticut  —  Cochrane,  17. 
Cookeite,  Haddam  Neck  - —  Bowman,  8. 

Colchester,  geology  —  Percival,  229 ;     Rice  and  Gregory,  243a. 
Colebrook,  geolog\^  —  Emerson,  113;    Percival,  229;    Rice  and  Gregory, 
243a. 

map  —  Emerson,  537. 
Collinsville  granite-gneiss  —  Rice  and  Gregory,  243a. 
Columbia,  geology  —  Percival,  229;     Rice  and  Gregory,  243a. 
Columbite,  Haddam  Neck  —  Bowman,  8. 

production  —  282. 
Compounce  pond,   esker  —  Rice  and   Gregory,  243a ;   Woodworth,  301. 
Concretiojns  from  Champlain  clays  —  Sheldon,  256. 
Connecticut,  coal  formation  —  Hitchcock,  138. 

eastern    boundary    of    Triassic    formation  —  Davis,    99. 

geology,  as  related  to  water  supply  —  Gregory,  124a;  Rice  and 
Gregory,  243a. 

lost  volcanoes  —  Davis,  95- 

lowland — ^Burr,  12;    Davis,  96;    Rice,  243. 

maps  —  Chapin.  502;  Davis,  524,  525;  Dewey,  532;  Gregory,  539; 
Gregory  and  Robinson,  124c,  539a ;  Hitchock,  542.  545 ;  Hobbs, 
558;  Maclure,  571;  McGee,  570;  Merrill,  576;  Percival,  578; 
Rice  and  Gregory,  582a. 

meadows  —  Dorsey,  106;    Fippin,  116. 

river  system  —  Hobbs,   154. 

underground  water  —  Gregory.   12^.  124a. 

uplands — ^  Davis,  96;    Rice.  148. 
Connecticut  river,  bed  —  Hitchcock,  ijo. 


92  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

flood  of  melting  Quaternary  glacier  —  Dana,  52. 

gorges    through    trap  —  Emerson,    1 10. 

height  at  Hartford  —  282 ;  Newell,  223.  i 

height   at   Holyoke  —  Newell,   224.  % 

lower   part  —  Kiimmel,    183. 

profile,  282. 

relation  of  kames  to  Triassic  formation  —  Dana,  51. 

terraces  —  Dana,  26. 

trap.     See  Triassic  trap. 

western   discharge  —  Dana,    56. 
Connecticut  surveys,  history — Gregory,  124c. 
Connecticut  swamp- — Dorsey,  106;   Pippin,  116. 
Connecticut  vallejs  ancient  inhabitants  —  Barbour,  4. 

before  glacial  flood  —  Dana,  41. 

bird  origin  of  foot-prints  —  Deane,  loi.  * 

concretions  —  Sheldon,   256.  j 

crystalline  and  metamorphic  rocks  —  Ivlarcou,  200.  | 

drilled  wells  —  Pynchon,  239. 

formations  —  Hitchcock,    132;     Rogers,   248. 

fossil  fishes  —  Eaton,  107. 

fossil  fishes  and  plants  —  Loper,  189;  Newberry,  221. 

fossil   foot-prints  —  Hitchcock,   144;   Lull,   192,   193. 

fossil  foot-prints  of  birds,  and  impressions  of  raindrops  — 
Lyell,   194. 

Glacial  epoch  —  Dana,  60. 

glacier —^  Dana,  31,  33. 

lakes   formerly  existed  —  Hitchcock,   136. 

lowland. —  Burr,  12;    Davis,  96. 

maps  — Dana,  506,  510;  Davis,  522,  526,  528;  Dorsey,  533; 
Pippin,  538;  Hitchcock,  544,  547;  Logan,  566;  Rice  and 
Gregory,    582a ;     Russell,    583 ;     Smith,    584 ;     Westgate,    589. 

mechanical    origin    of    Triassic    monoclinal — -Davis,    86. 

mineralogy  and  scenery  —  Hitchcock,  136. 

origin    of   Triassic    monoclinal  —  Davis,   85. 

sandstone,  age  of  —  Agassiz,  i:  Deane,  loi ;  Hitchcock,  146; 
Rice  and   Gregory,  243a ;    Wells,  291 ;    Whelpley,  296. 

sandstone,    red  —  Lyell,    194;     Marcou,   200. 

sandstone    formation  —  Wells,    291. 

soil,   suitable   for   tobacco  —  Killebrew,    178. 

soil  survey  —  Dorsey,  106;  Pippin,  116. 

structure  of  Triassic  formation  —  Davis,  84;  Rice  and  Greg- 
ory, 243a. 

terraces    and   beaches  —  Hitchcock.    145. 

topographic    development    of    Triassic    formation  —  Davis,    89. 

trap  rock  —  Dana,  21 ;    Davis,  93  ;    Hawes,  128 ;    Whelpley,  296. 

Triassic  formation  —  Davis,  83,  98;  Rice  and  Gregory,  243a; 
Russell,   249,   253. 

Triassic   rocks   as    source   of   water    supply  —  Fuller,    119. 

Triassic    sandstone  — •  Davis,    92. 

Triassic    structure  —  Davis,    79. 

Triassic  trap.    See  Triassic  trap. 

trough  —  Dana,   70. 

water   body,   relation   to   Hudson  —  Peet,   227. 

water   courses — Smith,   279. 
Cooper,   T.,  Volcanoes  and  volcanic   substances  —  Cooper,    18. 
Copper,    Bristol  —  Hulbert,    165 ;     Whitney   and    Silliman,    297. 

Granby  —  Benjamin,  5;     Hitchcock,   138. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  93 

Manchester  —  de  Valcherville,  285. 

Wallingford  —  Silliman,   264. 
Copper  mines  —  Dana,  75 ;  Hulbert,  165 ;  Rice  and  Gregory,  243a. 
Cornish,    R.    H.,    Glacial    scratches    in    vicinity   of    Norfolk — Cornish, 

19. 
Cornwall,   geology  —  Percival.   229;     Rice   and   Gregory,   243a. 

graphitic  mica  schists  holding  garnet  and  cyanite  —  Hunt,   167. 

map — •  Pynchon,    581. 

observations   of   minerals  —  Brace,   9.  , 

plumbago — -Silliman,   263. 
Corundum,    Barkhamsted  —  Emerson,    114. 

production  —  282. 
Coventry,   geology — Percival,   229;     Rice   and   Gregory,   243a. 
Crescent-formed  dikes  —  Rogers,  247. 

Crosby,   \V.    O.,   Notes   on   the  geology  of   the   sites   of   the   proposed 
dams    in   the   valleys   of   the   Housatonic   and   Tenmile    rivers 
—  Crosby,  20. 
Crystalline    formation  —  Smith,    279. 
Crystalline  rocks,  action  of  humus  acid  —  Julien,  175. 

New   Haven  —  Silliman,   260. 

origin  —  Hunt,   168;    Rice   and   Gregory,  243a. 

tj'pes   described  —  Rice   and   Gregory,   243a. 
Crystals,   South  Lyme  —  Matthew.  215. 

D 

Damming  of  the   streams  by   drift   ice — Dana.  42. 

Dams,  proposed  in  valleys  of  Housatonic  and  Tenmile  rivers  —  Crosby, 

20. 
Dana,  E.   S.,  Occurrence  of  garnet   with   the  trap   of   New   Haven  — 

Dana,  22. 
Trap   rock  of  the   Connecticut  valley  —  Dana,  21. 
Dana,  E.  S.,  and  Brush,  G.  J.,  New  and  remarkable  mineral  locality  at 

Branchville  —  Brush  and  Dana,  11. 
Dana,  J.  D.,  Additional   Observations  on  the  Jura-Trias  traps  of  the 

New  Haven  region  —  Dana.  74. 
Age  of  Green  mountains  —  Dana,  48. 
Age  of  Taconic  system  —  Dana,  53. 
Archaean    axes   of  eastern    North    America  —  Dana,    70. 
Archaean   limestone    and   other   rocks   in    Norfolk  —  Dana,   69. 
biography  —  76. 

Character  of  trap  near  New  Haven  —  Dana,  2^. 
Connecticut    river   valley   glacier  —  Dana,   33. 
Damming  of  the   streams  by  drift  ice  —  Dana,  42. 
Decay   of  quartzite   and   formation   of   sand  —  Dana,   63. 
Displacement    through    intrusion  —  Dana,    66. 
Doleryte     (trap)     of    Triassic-Jurassic    area    of    eastern    North 

America  —  Dana,  50. 
Evidence    from    southern    New    England    against    the    iceberg 

theory  of  drift  —  Dana.  54. 
Excursion   to   Hanging   Hills  of   Meriden  —  Dana,   30. 
Flood   of   Connecticut  valley  from  the   melting  of  the   Quater- 
nary glacier  ^- Dana,  52. 
Four  Rocks  of  New  Haven  —  Dana,  71. 
Geological    age  of  Taconic   system  —  Dana.    53. 
Geological    relations    of    the    limestone    belts    of    Westchester 

county  —  Dana,  49. 
Geology  of  New  Haven  region — Dana.  29,  38. 
Glacial  and  Champlain  eras  in  New  England  —  Dana,  39. 


94  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

Green  mountain  geology  —  Dana,  35. 

Hudson  river  age  of  Taconic  schists  —  Dana,  47. 

Indurated  bitumen  —  Dana,  44. 

Manual  of  geology  —  Dana,  75. 

Objection  to  Cook's  hypothesis  of  former  continuity  of  Triassic 

areas  —  Dana,  55. 
Origin  of  bedding  in  so-called  metamorphic  rocks  —  Dana,  62. 
Origin  of  grand  outline  features  of  the  earth  —  Dana,  24. 
Percival's  map  —  Dana,  TZ- 
Phenomena  of  Glacial   and  Champlain  periods  about  the   mouth 

of  the  Connecticut  —  Dana,  58. 
Plan  of  development  in  the  geological  history  of  North  America 

—  Dana,  25. 
Quaternary,  or  post-Tertiary,  of  New  Haven — ^Dana,  31. 
Quartzite,  limestone,  and  associated  rocks  of  Great  Barrington  — 

Dana,  ZT- 
Relation  of  geology  of   v/'ermont  to  the  Berkshires  —  Dana,  43. 
Relation  of  so-called  kames  to  terrace  formation  —  Dana,  51. 
Reply  to  Prof.  Agassiz  —  Dana,  28. 

Review  of  "  Geology  of  North  America,"  Marcou  —  Dana,  27. 
Review   of  "  Gradual   variation  in  intensity  of  Metamorphism," 

Middlemiss  — Dana,  67. 
Review  of  "  Historical  notes  of  the  earthquakes  of  New   Eng- 
land," Brigham  —  Dana,  32. 
Review    of    "Illustrations    of    surface    geology,"     Hitchcock  — 

Dana,  26. 
Review  of  "  Physical  history  of  the  Triassic  formation  in  Con- 
necticut  Valley,"    Russell  —  Dana,   46. 
Review  of  "  Preliminary  paper  on  terminal  moraine,"  Charaber- 

lin  —  Dana,  60. 
Review  of  "  Subaerial  decay  of  rocks,"  Russell  —  Dana,  68. 
Review    of   "  Triassic    trap    and    sandstones    of    eastern    United 

States,"  Davis  —  Dana,  57. 
Some  features  of  non-volcanic  igneous  ejection,  as  illustrated  in 

the  four  "  Rocks  "  of  New  Haven  —  Dana,  yz. 
Some  points  in  lithology  —  Dana  45. 
Southern  New  England  during  the  melting  of  the  great  glacier  — 

Dana,  41. 
Southward  ending  of  a  great  synclinal  in  the  Taconic  range  — 

Dana,  59,  61. 
Staurolite    crystals    and    Green    mountain    gneisses  •  of    Silurian 

age  —  Dana,  40. 
Taconic  rocks  and  stratigraphy  —  Dana,  65. 
Taconic  system,  age  —  Dana,  53. 

Till  ridge  near  New  .Haven  called  Round  hill  — Dana,  34^ 
Triassic  sandstone  of  Palisade  ranges  —  Dana,  34. 
Western  discharge  of  the  flooded  Connecticut —  Dana,  56. 
Danbury,  geology  —  Percival,  229;    Rice  and  Gregory,  243a. 
map  —  Dana,  508;    Hobbs,  560. 
sewage  conditions  ■ —  Rafter,  240. 
Danbury  granodiorite-gneiss  —  Rice  and  Gregory,  243a. 
Darien,  geology  —  Percival,  229. 
Davis,  C.  H.  S.,  Catopterus  gracilis  —  Davis.  '/'/. 
Davis,  W.  M.,  Ash  bed  at  Meriden  —  Davis,  87. 

Brief  notice  of  observations  on  Triassic  trap  —  Davis,  78L 
Di«tribution   and  origin   of   drumlins  —  Davis,  81. 
Faults  in  Triassic  formation  near  Meriden  —  Davis,  88. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  95 

Geological  dates  of  origin  of  certain  topographic  forms  on  At- 
lantic coast  —  Davis,  94. 

"  High  river  terraces,"  Koons  —  Davis,  80. 

Lost  volcanoes  of  Connecticut  —  Davis,  95. 

Mechanical  origin  of  Tfiassic  monoclinal  —  Davis,  86.  ^ 

Physical  geography  of  southern  New  England  —  Davis,  91,  96. 

Quarries  in  lava  beds  at  Meriden  —  Davis,  97. 

Relations  of  Triassic  trap  and  sandstones  of  eastern  United 
States  —  Davis,  82. 

Remarks  on  structure  of  fillings  of  fissures  in  trap  at  Meriden  — 
Davis,  90. 

Results  of  study  of  the  mechanical  origin  of  the  Triassic  mono- 
clinal in  Connecticut  valley  —  Davis,  86. 

Structural  value  of  the  trap  ridges  of  Connecticut  valley  —  Davis, 

^'^^  . 

Structure  of  fillings  of  fissures  in  trap,  Meriden  —  Davis,  90. 
Structure  of  Triassic   formation  of  Connecticut  valley  —  Davis, 

83,  84.      . 
Topographic  development  of  the  Triassic  formation  of  Connec- 
ticut valley  —  Davis,  89. 
Triassic  formation  of  Connecticut  —  Davis,  93,  98. 
Triassic  sandstone  of  Connecticut  valley  —  Davis,  92. 
Davis,  W.  M.,  and  Griswold,  L.  S.,  Eastern  boundary  of  Connecticut 

Triassic  —  Davis  and. Griswold,  99. 
Davis,  W.  M.,  and  Whittle,  C.  L.,  Intrusive  and  extrusive  Triassic  trap 

sheets  of  the   Connecticut  valley  —  Davis  and  Whittle,   100. 
Deane,  James,  Ichnographs  from  the  sandstones  of  Connecticut  valley  — 

Deane,  loi. 
Decay   of   quartzite,   and   formation    of   sand,   kaolin,   and   crystallized 

quartz  —  Dana,  63.   • 
Derby,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 

stratified  rocks  —  Dana,  62. 
Des  Cloiseaux,  A.  L.  O.,  Optical  examination  of  red  feldspar  of  gran- 
ite from  Lyme  —  Des  Cloiseaux,  102. 
Dewey,  C,  Sketch  of  geology  and  mineralogy  —  Dewey,  103. 
Diabase  —  Merrill,  218;   Rice  and  Gregory,  243a. 

chemical  analysis,  Meriden  —  282  ;   Middlefield  —  Gregory,  U.  S. 
G.  S..  Bull.   165,  p.  176;  West  Rock  —  Hawes,  128.    See  also 
Chemical   analyses. 
Holyoke  — Emerson,    112. 
Differential  faults  —  Hobbs,  152. 

Dike,  acid,  in  Triassic  area  —  Hovey,  163.  , 

Beseck  lake  —  Griswold.  125. 
crescentic  form — Rogers,  247;  WTielpl^',  296. 
described  —  Hunt,  171. 
Mill  Rock  —  Dana,  71,  72 
See  also  Triassic  trap. 
Diluvium,  described —  Percival,  229. 
Dinosaur  skeleton,  Manchester  —  Marsh,  205. 
Dinosaurs  of  North  America  —  Marsh,  206. 
Diorite,  Brookfield  —  Rice  and  Gregory,  243a. 

See  also  Gabbro-diorite. 
Displacement  through  intrusion  —Dana,  66. 
Distribution  and  origin  of  drumlins  —  Davis,  81. 
Dobson,  P.,  Iceberg  theory  of  drift  —  Dobson,   105. 

Remarks  on  bowlders  —  Dobson,  104. 
Doleryte  (trap)   of  Tria&sic-Jurassic  area  —  Dana,  50. 


96  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

Dolomite,  described  —  Merrill,  218;    Rice  and  Gregory,  243a. 

Salisbury  —  Lee,  185. 
Dorsey,  C.  W.,  and  Bonsteel,  J.  A.,  Soil  survey  of  Connecticut  valley  — 

Dorsey  and  Bonsteel,  106. 
Drainage,  map  —  Davis,  526;   Hobbs,  564. 
Drift,  iceberg  theory  —  Dobson,  105. 

origin  —  Hitchcock,  141. 

See  also  Glacial  period.  Glaciers. 
Drilled  wells  of  Triassic  area  —  Pynchon,  239. 

Drumlins,  distribution  and  origin  —  Davis,  81;    Rice  and  Gregory,  243a. 
Durham,  fossil  fishes  —  Davis,  77. 

fossil  foot-prints  —  Hitchcock,  146. 

fossils  —  Loper,  189;    Newberry,  221. 

geology — Percival,  229;    Rice  and  Gregory,  243a. 

E 

Earthquakes,  New  England  — ■  Williams,  299. 

review  of  "  Earthquakes  of  New  England,"  Brigham  —  Dana,  32. 
East  Berlin,  map  —  Rice  and  Gregory,  5823. 

East  Haddam,  geology  —  Percival,  229 ;  Rice  and  Gregory,  243a. 
East  Hartford,  geology  —  Percival,  229 ;  Rice  and  Gregory,  243a. 
East  Haven,  fossils  —  Eaton,  107;    Loper,  189. 

geology  —  Percival,  229;    Rice  and  Gregory,  243a. 

map — -  Hovey,  565. 

trap  ridges  —  Davis,  98 ;    Hovey,  162. 
East  Hill,  map  —  Hobbs,  556. 

East  Lyme,  geology — Percival,  229;    Rice  and  Gregory,  243a. 
East  Meriden,  trap  sheets  —  Davis,  100. 
East  Rock,  described  —  Silliman,  262. 

description  with  illustrations  —  Dana,  71,  72. 

difference  between  East  and  West  Rocks  —  Porter,  234. 

garnets  found  in  trap  —  Dana,  22. 

map  —  Dana,  516,  517. 

trap  —  Dana,  21;  Davis,   100. 
East  Windsor,  geology  —  Percival,  229 ;   Rice  and  Gregory,  243a. 
Eastern  boundary  of  the  Connecticut  Triassic  —  Davis,  99. 
Eastern  United  States,  map  —  Maclure,  196,  571,  572. 
Eastford  granite-gneiss  —  Rice  and  Gregory,  243a. 
Eaton,  G.  F.,  Notes  on  .collection  of  Triassic  fishes  at  Yale  —  Eaton, 

107. 
Eckel,  E.  C,  Brown  hematite  deposits  —  Eckel,  108. 
Eggleston,  J.  W:,  Glacial  remains  near  Woodstock  —  Eggleston,  log. 
Ellington,  coal  —  Hitchcock,  136. 

geology  —  Percival,  229;    Rice  and  Gregory,  243a. 
Elmwood  loam  —  Dorsey,  106;    Fippin,  116. 

Emerson,  B.  K.,  Age  and  cause  of  gorges  cut  through  trap  ridges  by 
the  Connecticut  —  Emerson,  no. 

Diabase  pitchstone  and  mud  enclosures  of  the  Triassic  trap  of 
New  England  —  Emerson,  in. 

Geology  of  eastern  Berkshire  county,  Massachusetts  —  Emerson, 

113. 
Holyoke  folio  —  Emerson,  112. 

Note  on  corundum  and  a  graphitic  essonite  from  Barkhamsted  — 
Emerson,  114 
Emmons,  E.,  The  Taconic  system  —  Emmons,  115. 
Enfield,  geology — Percival,  229;    Rice  and  Gregory,  243a. 
Enfield  sandy  loam  —  Dorsey,  106;  Fippin,  116. 


No.    8.]        BIBMOGRAPHY    OF    CONNECTICUT    GEOLOGY.  9/ 

Epidote,   Salisbury  —  Lee,   185. 

Trumbull  —  Hobbs,   156. 
Eskers  —  Rice  and  Gregory,  243a. 

some  typical —  Upham,  284;    Woodworth,  301. 
Essonite,  graphitic,  Barkhamsted  —  Emerson,  114. 
Excursion  to  Hanging  Hills,  Meriden  —  Dana,  30.  * 


Fair   Haven,   dikes   in   railroad  cut  —  Hovey,   163. 
Fairfield,  geology — Percival,  229;    Rice  and  Gregory,  243a. 
Falls  Village,  gneiss  —  Dana,  37. 

limestone  —  Dana,  37;    Rice  and  Gregory,  243a. 

mica  schist  —  Dana,  2>7,  40- 

quartzite  —  Dana,  37. 
Farmington,  geology — Percival,  229;   Rice  and  Gregory,  243a. 

indurated  bitumen  in  trap  —  Dana,  44. 

map  — Davis,  530,  531;    Hobbs,  559. 
Farmington  mountam,  trap  sheets  —  Davis,  100. 
Farmington-  river,  clay  on  banks  —  Stodder,  281. 

original  course  —  Kiimmel,   183  ;    Rice  and  Gregory,  243a. 

Still  river,  tributary — Hobbs,  157. 
Farmington  valley,  discharge  of  flooded  Connecticut  —  Dana,  50. 
Fault  lines  —  Hobbs,  161 ;    Rice  and  Gregory,  243a. 
Faults,  eastern  boundary  Triassic  —  Davis  and  Griswold,  99. 

Housatonic  —  Hobbs,   151. 

Pomperaug  valley  —  Hobbs,  155. 

Triassic  formation  —  Davis,  88,  98 ;   Rice  and  Gregory,  243a. 
Feldspar,  chemical  analysis  —  Hawes,  130. 

granular  —  Mather,  209,  211. 

Lane's  mine  —  Hitchcock,   137. 

production  —  282. 

red,  at  Lyme  —  Des  Cloiseaux,  102. 

Salisbury  —  Lee,  185. 

Trumbull  —  Hobbs,  156. 
Fenton  river,  pot-holes  at  Gurleyville  —  Koons,  182. 
Fippin,  E.  C.  Soil  survey  of  Connecticut  valley  —  Fippin,  116. 
Fisher's  Island,  bowlders  —  Wells,  293. 
Fishes,  fossil  —  Eaton,   107;  Loper,  189;   Newberry,  221. 
Fissures,  peculiarities  —  Dana,  24. 

structure  of  fillings,  Meriden  —  Davis,  90. 
Flint,  production  —  282. 
Flinty   slate  — ■  Hitchcock,   138. 
Floetz    trap    formation    in    Connecticut    and    Massachusetts  —  Cooper, 

18;   Porter,  234. 
Flood  of  the  Connecticut  river  valley  from  the  melting  of  the  Quater- 
nary glacier  —  Dana,  52. 
Fluor-spar,  Haddam  Neck  —  Bowman,  8. 

Trumbull  —  Hobbs,    156. 
Fluviatile  swamps  of  New  England  —  Shaler,  255. 
Foot-prints,  bibliography  —  Hitchcock,    146. 

Connecticut  valley  —  Barbour,  4;    Lull,  192,  193. 

See  also  Fossil  foot-prints. 
Former  extent  of  the  Triassic  formation  —  Russell,  251. 
Fossil    fishes — 'Davis,    77;     Eaton,    107;     Loper,    189;     Marcou,    198; 

Mather,  212. 
Fossil   fishes   and  plants.   Connecticut   valley   and   New  Jersey  —  New- 
berry, 221. 

7 


98  CONNECTICUT    GEOL.    AND    NAT,    HIST.    SURVEY.        [Bull. 

Fossil  foot-prints,  birds  —  Lyell,  194;  Marcou,  198. 

Connecticut  valley  —  Hitchcock,   144;    Lull,   192,   193. 

described — Lull,  192;    Marcou,  198,  199. 

Jura-Trias  of  North  America  —  Lull,  192,  193. 
Fossil  plants,  New  Red  sandstone  —  Hitchcock,   142. 

trees  found  at  Bristol  —  Silliman,  277. 

wood.   South   Britain  — Knowlton,    180. 
Fossils,  anterior  and  posterior  shales  —  Loper,  189. 

Connecticut  valley  —  Barbour,  4;  Lull,  192,  193. 

description  —  Dana,  75. 

list  —  Lull,   193;    Lyman,   195;    Russell,  253. 

Triassic  —  Miller,  219. 
Four  Rocks  of  New  Haven  region  —  Dana,  71. 
Frazer,   P..   Jr.,   Description   of   microscopic   sections   of   trap  —  Frazer, 

Review  of  "  Physical   history   of  Triassic   formation,"   Russell  — 

Frazer,  118. 
Franklin,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 
Fuller,  M.  L.,  Triassic  rocks  of  Connecticut  valley  as  a  source  of  water 

supply  —  Fuller,  119. 


Galena,  Salisbury  —  Lee,  185. 

Gannett.  H.,  Geographic  dictionary  of  Connecticut  —  Gannett,   120. 

Magnetic  declination  in  the  LInited   States  —  Gannett,  121. 
Garnet,  with  trap  at  New  Haven  —  Dana,  22. 

production  —  282. 

Redding — ^  Seeley,  254. 

Salisbury  —  Lee,  185. 

Trumbull  —  Hobbs,  156. 
Gaylord's  mountain,  trap  sheet — Davis,  100. 
Geognosy  of  the  Appalachian  system  —  Hunt,  167,  168. 
Geographic  dictionary  of  Connecticut  —  Gannett,  120. 
Geological  and  Natural  History  Survey,  Connecticut  —  Rice,  242. 
Geological  chart  of  the  United  States  —  Bradley,  501. 
Geological   essays,   Hayden  —  Silliman,  268. 
Geological   History,   North   America  —  Dana,   25. 
Geological   map   of  Connecticut,   preliminary  —  Gregory   and   Robinson, 

124c. 
Geological    map    of    New    London    and    Windham    counties  —  Mather, 

210,  575- 
Geological  map  of  the  United  States  —  Blake,  6.  500;  Marcou,   198. 
Geological  map  of  the  United  States  and  part  of  Canada  —  Hitchcock, 

^35- 
Geology   and    mineralogy   of   New   London   and    Windham    counties  — 

Mather,  211. 
Geology   and   mineralogy   of   western    part    of   Massachusetts    and    ad- 
joining states  —  Dewey.    103. 
Geology  of  Connecticut  —  Percival.  229;  Rice  and  Gregory.  243a. 
as  related  to  water  supply  —  Gregory,  124a. 
outline  —  Gregory  and  Robinson,  124c. 
Geology  of  Massachusetts  —  Hitchcock,   138. 
Geology  of  New  Haven  region  —  Dana,  29,  38. 
Geology  of  New  York  —  Mather,  213. 
Geology  of  North  America  —  Dana,  27;  Marcou.  200. 
Geology  of  United   States  —  Maclure,  196,   197;   Rogers,  248. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  99 

Gibb,  G.  E.,  Crystallized  bodies  in  meteoric   stone  —  Gibb,   122. 

Glacial  action  in  southern  Connecticut  —  Wells,  293. 

Glacial  epoch,  second  —  Dana,  16. 

Glacial  period  —  Dana,  38,  39,  58;  Davis,  80;  Hitchcock.  134;  Peet,  227. 

Glaciers,  action  on  projecting  rock  masses  —  Hobbs,  158. 

Connecticut  —  Dana,  42  ;    Pynchon,  22,"]  ;    Rice  and  Gregory,  243a  ; 
Wells,  293. 

Connecticut  river  valley  — -  Dana,  2,}^ ;    Peet,  227. 

damming  of  streams  —  Dana,  42;    Rice  and  Gregory,  243a. 

deposits — -Dana,   75;     Emerson,    112;     Rice   and   Gregory,   243a; 
Upham,  283. 

drift  —  Dobson,  105;   Hobbs,  157;  Hitchcock,   145;  Mather,  213; 
Rice  and  Gregory,  243a. 

extent  in  North  America  —  Hitchcock,   134. 

flood  in  Connecticut  valley  —  Dana,  52. 

Goshen  —  Norton,  226. 

hypothesis,  historv  —  Rice  and  Gregory,  243a. 

Mill  Rock  — Blake,  7. 

modification  of  surface  —  Davis,  98. 

New  Haven  —  Dana,  31. 

remains  near  Woodstock  —  Eggleston,  109. 

scratches  at  Norfolk  —  Cornish,  19. 

striae,  map  —  Rice  and  Gregorj^  582a. 

time,  conditions,  and  results  —  Dana,  38. 

Woodbridge  bowlder  —  Hubbard,  164. 
Glastonbury,  geology  —  Percival,  229;    Rice  and  Gregory,  243a. 

soils  —  Dorsey,   106,  533. 
Glastonbury  granite-gneiss  —  Rice  and  Gregory,  243a. 
Gneiss,  Becket  —  Emerson,  112,  113;    Rice  and  Gregory,  243a. 

Branford  — ■  Rice  and  Gregory,  243a. 

Bristol  —  Rice  and  Gregory,  243a. 

Canaan  —  Dana,  Z7- 

Canterbury  —  Rice  and  Gregory,  243a. 

Collinsville  —  Rice  and  Gregory,  243a. 

Danbury  —  Rice  and  Gregory,  243a. 

Eastford  —  Rice  and  Gregory,  243a. 

Falls  Village  —  Dana,  yj- 

Glastonbury  —  Rice  and  Gregory,  243a  ;    Westgate,  295. 

Haddam  - —  Rice  and  Gregory,  243a ;    Webster,  290. 

Hebron  —  Rice  and  Gregory,  243a. 

Litchfield  —  Brace,  9. 

Lyme  —  Rice  and  Gregory,  243a. 

Mamacoke  —  Rice  and  Gregory,  243a. 

Maromas  —  Rice   and  Gregory,   243a. 

Middletown  —  Rice  and  Gregory,  243a. 

Monson  —  Rice  and  Gregory,  243a. 

New  London  —  Rice  and  Gregory,  243a. 

New  London  and  Windham  counties  —  Mather,  211. 

porphyritic.  Prospect  —  Rice  and  Gregory,  243a. 

Putnam  —  Rice  and  Gregory,  243a. 

Sterling  —  Rice  and  Gregory,  243a. 

Stony  Creek  —  Rice  and  Gregory.  243a. 

Thomaston  —  Rice  and  Gregorj',  243a. 

Washington  —  Emerson.   112. 

Waterbury  —  Rice  and  Gregory,  243a. 

Willimantic  —  Rice  and  Gregory,  243a. 

See  also  Granite-gneiss. 


lOO  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.       [BuU. 

Gneiss  formation  —  Emerson,   112,  113;  Hitchcock,   138;   Percival,  229. 
Goshen,  description  —  Silliman,  265. 

geology  —  Percival,  229 ;    Rice   and   Gregory,  243a. 

glacial  striae — -Norton,  226. 

minerals  —  Brace,  9. 
Granby,  copper  —  Benjamin,  5;    Hitchcock,  138. 

fossil  plants  —  Hitchcock,  136. 

geology  —  Percival,  229. 
Granite,   analysis,   Millstone  point.   Stony   Creek  —  Kemp,   177. 

Branchville  —  Brush  and  Dana,  11. 

comparative  strength  —  Winchell,  300. 

Connecticut  —  Hitchcock,  138;    Mather,  209. 

described — Merrill,  218. 

East  Haven  —  Hitchcock,  136. 

Greenwich  — Winchell,  300. 

Haddam  —  Webster,  290. 

Leete  island  — Newberry,  220. 

Lyme  —  Des  Cloiseaux,  102. 

Millstone   point  —  Kemp,   177;    Newberry,  220;    Winchell,  300. 

Mystic  river  —  Winchell,  300. 

New  London  —  Rice  and  Gregory,  243a  ;    Winchell,  300. 

New  London  and  Windham  counties  —  Mather.  211. 

Niantic  —  Newberry,  220. 

Norfolk  —  Dana,  69. 

Norwalk  —  Newberry,  220. 

Stony  Creek  —  Kemp,   177;    Newberry,  220;    Rice  and  Gregory, 
243a;    Winchell,  300. 

Thomaston  —  Newberry,  220. 

Tolland  —  Webster,  290. 

Westerly — 'Kemp,  177;    Rice  and  Gregory,  243a. 

Winnepaug — Newberry,  220. 
Granite-gneiss  —  Rice  and  Gregory,  243a  ;    Westgate,  295. 

Branford  —  Rice  and  Gregory,  243a. 

Bristol  —  Rice  and  Gregory,  243a. 

Canterbury  —  Rice  and  Gregory,  243a. 

Collinsville  —  Rice  and  Gregory,  243a. 

Eastford  —  Rice  and  Gregory,  243a. 

Glastonbury  —  Rice   and  Gregory,  243a. 

Haddam  —  Rice  and  Gregory,  243a. 

Lyme  —  Rice  and  Gregory,  243a. 

Maromas  —  Rice  and  Gregory,  243a;  Westgate,  295. 

Monson  —  Rice  and  Gregory,  243a. 

New  London  —  Rice  and  Gregory,  243a. 

Sterling — Rice  and  Gregory,  243a. 

Stony  Creek  —  Rice  and  Gregory,  243a. 

Thomaston  —  Rice  and  Gregory,  243a. 
Granodiorite-gneiss  —  Rice  and  Gregory,  243a. 
Graphite,  with  essonite,  Barkhamsted  —  Emerson,  114. 

Salisbury  —  Lee,  185. 

Tolland  —  Webster,  290. 
Great  bowlder  in  Woodbridge  —  Hubbard,  164. 
Great  quartz  vein  of  Lantern  hill  —  Kemp,  176. 
Green  mountain  geology  —  Dana,  35. 
Greenstone,  Berlin — Percival,  228. 

Woodbury  —  Hitchcock,  137. 
Greenstone  formation  —  Hitchcock,   138. 

See  also  Triassic  trap 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  lOI 

Greenwich,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 
granite  —  Winchell,  300. 
limestone,  building  stone  —  Newberry,  220. 
Gregory,  H.  E.,  Geology  of  Connecticut  as  related  to  water  supply  — 
Gregory,  124a. 
Underground  waters  of  Connecticut  —  Gregory,  124. 
Well  and  spring  records  —  Gregory,  123. 
Gregory,  H.  E.,  and  Rice,  W.   N.,  Manual  of  Connecticut  geology  — 

Rice  and  Gregory,  243a. 
Gregory,  H.  E.,  and  Robinson,  H.  H.,  Preliminary  geological  map  of 

Connecticut  —  Gregory  and   Robinson,   124c. 
Griswold,  geology — Percival,  229;    Rice  and  Gregory,  243a. 
Griswold,  L.  S.  —  A  basic  dike  in  Connecticut  Triassic  —  Griswold,  125. 
Groton,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 
quarries  —  Niles,  225. 

stratiform   structure  in  erupted  rock  —  Hunt,   169. 
Guilford,  geology — Percival,  229;    Rice  and  Gregory,  243a. 
j'Gurleyville,  pot-holes  —  Koons,  182. 

Gurlt,  A.,  Remarkable  deposit  of  wolfram  ore  in  the  United  States  — 
Gurlt,  126. 

H 

Haddam,  beryl  —  Silliman,  263. 

garnet  —  Webster,  290. 

geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 

gneiss  —  Webster,  290. 

minerals  —  Webster,  290. 
Haddam  granite-gneiss  —  Rice  and  Gregory,  243a. 
Haddam    Neck,   minerals  —  Bowman,  8. 
Hall,  J.,  Paleontology  of  New  York  —  Hall,  127. 
Hamden,  geology  —  Percival,  229;    Rice  and  Gregory,  243a. 
Hampton,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 
Hanging  Hills,  description  and  geology  —  Chapin,  14;    Davis,  98;    Rice 
and  Gregory,  243a. 

excursion  to  —  Dana,  30. 

map  —  Dana,  518,  531. 
Hartford,  clays  —  Loughlin,  190. 

clay- working  —  Ries,  245. 

Connecticut  river  measurements  —  Newell,  223. 

geology  —  Percival,  229;    Rice  and  Gregory,  243a. 

indurated  bitumen  in  trap  —  Dana,  44. 

magnetic  declination  —  Gannett,  121. 

map  —  Dana,  517;    Pippin,  538;    Rice,  582. 

trap  sheets  —  Davis,  98,  100;   Rice  and  Gregory,  243a. 
Hartford  sandy  loam — ^Dorsey,  106;  Pippin,  116. 
Hartland,    geology  —  Emerson,    112,    113;     Percival,    229;     Rice    and 

Gregory,  243a. 
Hartland  schist  —  Rice  and  Gregory,  243a. 
Harwinton,  geology  —  Percival,  229;  Rice  and  Gregory,  243a. 

minerals  —  Brace,  9. 
Hawes,  G.  W.,  Mineralogical  composition  of  the  normal  INIesozoic  dia- 
base —  Hawes,  130. 

Rocks  of  the  "  chloritic  formation  "  on  the  western  border  of  New 
Haven  —  Hawes,  129. 

Trap  rock  of  Connecticut  valley  —  Hawes,  128. 
Hayden,  Geological  essays  —  Silliman,  268. 
Hebron,  geology  —  Percival,  229;    Rice  and  Gregory,  243a. 


102  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

magnetic  declination  —  Gannett,  121. 
Hebron  gneiss  —  Rice  and  Gregory,  243a. 
Hessonite,  Canaan  —  Hobbs,  153. 
Higby  mountain,  fossils  —  Loper,  189. 

map  — Davis,  523,. 529.  53i- 

trap  sheets  —  Davis,  98,  100. 
High  terraces  of  the  rivers  of  eastern  Connecticut  —  Davis,  80;  Koons, 

181. 
Highland  lake,  trap  —  Davis,  100. 
Hitchcock,   C.   H.,   Geological    formations  of  Connecticut  —  Hitchcock, 

133- 

Geological  map  of  United   States  —  Hitchcock,   135,   500. 

North  America  in  the  ice  period  —  Hitchcock,  134. 

Relation  of  geology  of  New  Hampshire  to  Connecticut  —  Hitch- 
cock, 132. 

So-called  talcose  schist  of  Vermont  —  Hitchcock,  131. 
Hitchcock,   E.,   Attempt  to  discriminate   and   describe  the  animals  that 
made  the  fossil  foot-prints  of  the  United  States  —  Hitchcock, 
144. 

Bed  of  the  Connecticut  river  —  Hitchcock,  140. 

biography  —  148. 

Description  of  fossil  plants  from  New  Red  sandstone  —  Hitch- 
cock, 142. 

Ichnology  of   New  England  —  Hitchcock,    146,    147. 

Illustrations  of  surface  geology  —  Hitchcock,  145. 

Miscellaneous   notices   of   mineral    localities    with    geological    re- 
marks —  Hitchcock,  137. 

Ornithichnology  —  Hitchcock,  139. 

Phenomena  of  drift  —  Hitchcock,   141. 

Report  on  t'he  geology  of  Massachusetts  —  Hitchcock,  138. 

Sketch    of    geology,    mineralogy,    and    scenery    of    regions    con- 
tiguous to  the  Connecticut  river  —  Hitchcock,   136. 

Trap  tuff  or  volcanic  grit  of  the  valley  of  the  Connecticut  river  — 
Hitchcock,  143. 
Hobbs,  W.  H.,  Action  of  ice  sheets  upon  slender  projecting  rock  masses 
—  Hobbs,  158. 

Differential  faults  —  Hobbs,   152. 

Geological  structure  of  Housatonic  valley  —  Hobbs,   151. 

Geological    structure    of    Mount    Washington,    Massachusetts  — 
Hobbs,  150. 

Lineaments  of  Atlantic  border  region  —  Hobbs,  161. 

Mineralogical  notes  —  Hobbs,  153. 

Newark  system  of  Pomperaug  valley  —  Hobbs,   155. 

Notes  on  some  pseudomorphs  from  Taconic  region  —  Hobbs,  149. 

Old  tungsten  mine  at  Trumbull  —  Hobbs,  156. 

River  system  of  Connecticut  —  Hobbs,  154. 

Still  rivers  of  western  Connecticut  —  Hobbs,  157. 

Tectonic  geology  of  southwestern  New   England  —  Hobbs,   160. 

Tungsten  mining,  Trumbull  —  Hobbs,   159. 
Holyoke  folio  —  Emerson,  112. 

map  —  Emerson,  535. 
Holyoke  stony  loam  —  Dorsey,  106. 
Hope  River,  former  ice  dam  —  Koons,  181. 
Hornblende,  Chester  —  Emerson,  112. 

Lane's  mine  —  Hitchcock,  137. 

Middletown  —  Merrill,  217. 

New  London  and  Windham  counties  —  Mather,  211. 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  IO3 

Salisbury  —  Lee,  185. 

Trumbull  —  Hobbs,  156. 
Hornblende  slate  —  Hitchcock,  138. 

See  also  Amphibolite. 
Hotchkissville  —  Hobbs,  556. 
Housatonic  river,  discharge  —  282. 

faults  —  Hobbs,  152. 

height  at  Gaylordsville  —  282. 

map  —  Crosby,  503  ;    Hobbs,  549. 

profile  —  282. 

proposed  dams  —  Crosby,  20. 

readjusted  stream — iKummel,  183. 

Still  river,  tributary  —  Hobbs,  157;    Rice  and  Gregory,  243a. 
Housatonic  valley,  geological  structure — ^  Hobbs,  151. 

soil  suitable  for  tobacco  —  Killebrew,  178. 
Hovey,  E.  O.,  Oservations  on  some  of  the  trap  ridges  of  East  Haven  — 
Hovey,  162.  * 

Relatively  acid   dike   in  the   Connecticut   Triassic  —  Hovey,   163. 
Hubbard,  O.  P.,  Great  bowlder  in  Woodbridge  —  Hubbard,  164. 
Hudson  river  age  of  Taconic  schists  —  Dana,  47. 
Hulbert,  E.  M.,  Copper  mining  in  Connecticut  ^-  Hulbert,  165. 
Humus  acid,  action  on  rocks  and  minerals  —  Julien,  175. 
Hunt,  T.  S.,  Geognosy  of  Appalachian  system  —  Hunt,   167,  168. 

Geology  of  Appalachians,  and  origin  of  crystalline  rocks  —  Hunt, 
168. 

Remarks  on  the  stratification  of  rock  masses  — Hunt,   169. 

Review  of  progress  of  geology  for  1882  —  Hunt,  171. 

Some  crystalline  limestones  of  North   America  —  Hunt,   166. 

Special  report  on  trap  dikes  and  Azoic  rocks  of  southern  Penn- 
sylvania— -Hunt,  170. 
Huntington,  geology  —  Percival,  229  ;    Rice  and  Gregory,  243a. 
Hydrocarbon  in  trap  —  Dana,  44;    Russell,  250. 


Ice   caves   and   frozen   wells,   as    meteorological    phenomena  —  Kimball, 

at   Meriden   and   Northford  —  Silliman,   269. 

at  Salisbury — Silliman,  270. 
Ice  dams,  rivers  of  eastern  Connecticut  —  Koons,  i8r. 
Iceberg  theory  of  drift — 'Dana,  54;  Dobson,  105;  Perry,  231. 
Ichnographs  from  sandstone  of  Connecticut  valley  —  Deane,   loi. 
Ichnology  of  New  England  —  Hitchcock,  146. 
Igneous  origin  of  some  trap  rock  — ■  Silliman,  272. 
Illustrations  of  surface  geology  —  Hitchcock,  145. 
Ilmenite,  Trumbull  —  Hobbs,  156. 
Indurated   bitumen,   discussion   of  origin   and   description  —  Dana,  44; 

Percival,  229;    Russell,  250. 
Intrusive  and  extrusive  Triassic  trap  sheets  —  Davis,  98,  100;    Rice  and 

Gregory,  243a. 
Iron,  eastern  New  York  and  western  New  England  —  Eckel,  108. 

in  mica  slate  —  Hitchcock,  137. 

magnetic.  New  Haven  —  Dana,  69;  Silliman,  262. 

production  —  282. 
Iron  mines  —  Dana,  75;    Hitchcock,  137,  138;    Putnam,  235;    Pynchon, 

238. 
Iron  ores,  classification  and  distribution  —  Smock,  280. 

Norfolk  —  Dana,  69. 


I04 


CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY. 


[Bull. 


Salisbury 
i8s 


Dewey,  103;    Eckel,  108;    Hitchcock,  137,  138;    Lee, 


Jackson,  C.  T.,  Observations  on  the  age  of  the  sandstone  of  the  United 

States  —  Jackson,  173. 
Jasper,  Salisbury  —  Lee,  185. 
Jewett  City,  gneiss — •Webster,  290. 
Johnston,  J.,   Notice  of  some  spontaneous  movements  in  quarries,   at 

Portland  —  Johnston,  174. 
Julian,  A.  A.,  Geological  action  of  humus  acids  — Julien,  175. 
Jurassic  period  —  Dana,  25. 
Jura- Trias,  origin  —  Dana,  55. 

trap  in  New^  Haven  region  —  Dana,  74. 

See  also  Triassic. 

K 

Karnes,    Connecticut    valley  —  Dana,    51;     Rice    and    Gregory,    243a; 
Upham,  283. 
Woodstock  pond — ^"Eggleston,  109. 
Kaolin,  analysis.  West  Cornwall  —  Loughlin,   190;    Ries,  245. 
Canaan  —  Dana,  63  ;    Loughlin,  190. 
formation  —  Dana,  63. 
Sharon  —  Dana,  63. 
Kemp,   J.    F.,    Granite    of    southern    Rhode    Island    and    Connecticut - 
Kemp,  177. 
Great  quartz  vein  of  Lantern  hill  —  Kemp,  176. 
Kent,  description  —  Silliman,  265. 

geology — Percival,  229;    Rice  and  Gregory,  243a. 
mines  —  Putnam,  235. 
Keratophyre,  analysis  —  Hovey,   163. 
Kettle-holes,  New  Haven  —  Dana,  58,  71. 
Woodstock  pond  —  Eggleston,  log. 
Killebrew,  J.  B.,  Report  on  culture  and  curing  of  tobacco  in  the  United 

States  —  Killebrew,  178. 
Killingly,.  geology  —  Percival,  229  ;    Rice  and  Gregory,  243a. 
Killingworth.  geology  —  Percival,  229;   Rice  and   Gregory,  243a. 
Kimball,  H.  H.,  Ice  caves  and  frozen  wells  as  meteorological  phenomena 

—  Kimball,  179. 
Knowlton.   F.   H.,   Report  on   fossil   wood   from   the   Newark  formation 

of  South  Britain  —  Knowlton,  180. 
Koons,    B.    F..   High   terraces   of   the   rivers   of   eastern    Connecticut  — 
Davis,  80;    Koons,  181. 
Pot-holes  on  edge  of  blufifs  at   Gurleyville  —  Koons,   182. 
Kiimmel,  H.  B.,  Some  rivers  of  Connecticut  —  Kiimmel.  183. 


Lake  Wauramaug,  sewage  conditions  —  Rafter,  240. 

Lakes.  Connecticut  —  Gregory,  124a;    Rice  and  Gregory,  243a. 

Lakeville,  mines  —  Putnam,  235. 

synclinal  of  Taconic  range  —  Dana.  59. 
Lamentation    mountain,    ash    bed  —  Chapin,    15;    Davis,    87,    95,    98; 
Emerson.  11 1;  Rice  and  Gregory,  243a. 

map  —  Davis,  523,  526.  529,  531;    Rice,  582a. 

trap  sheets  —  Davis,  98,  100;    Rice  and  Gregory,  243a. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  I05 

La  Metherie,  J.  C.  de,  Silliman's  geological  observations  —  La  Metherie, 

184. 
Lane's  mine,  products  —  Hitchcock,  137. 

Lantern  liill,  quartz  —  Kemp,    176;   Rice  and   Gregory,  243a. 
Lavas  of  Connecticut  —  Pynchon,  236. 
Lead  mines,  Berlin  —  Percival,  228. 

Lebanon,  geology  —  Percival,  229 ;  Rice  and  Gregory,  243a. 
Ledyard,  geology  —  Percival,  229;  Rice  and  Gregory,  243a. 
Lee,  C.  A..  Moving  rocks  of  Salisbury  —  Lee,  186. 

Sketch  of  geology  and  mineralogy  of  Salisbury  —  Lee,  185. 
Leete  Island,  granite — -Newberry,  220;    Rice  and  Gregory,  243a. 
Lenox,  wedging  action  of  intruding  material  —  Dana,  66. 
Lepidolite,  Haddam  Neck  —  Bowman,  8. 
Lime,  Berlin  —  Percival,  228. 

Salisbury  —  Lee,  185. 
Limestone,  action  of  humus  acids  —  Julien,  175. 

age  of  Connecticut  belts  —  Dana.  47. 

Archaean,  at  Norfolk  —  Dana,  69. 

building  stone  at  Greenwich  —  Newberry,  220. 

Canaan  —  Dana,  Zl  \    Rice  and  Gregory,  243a ;    Ries,  244. 

conditions  of  accumulation  —  Davis,  83. 

description  —  Dana,  43  ;    Dewey,  103;    Hunt,  166;    Merrill,  218. 

Falls  Village  —  Dana,  2,7- 

Housatonic  valley  —  Hobbs,  151;   Rice  and  Gregory,  243a. 

hydraulic  —  Lowrey,   191. 

New  London  and  Windham  counties  —  Mather,  21  r. 

northwestern  Connecticut  —  Dana,  61. 

production  —  282. 

quarries  at  Canaan  —  Ries,  244. 

Salisbury  —  Dana.  59;    Lee,  185;    Rice  and  Gregory,  243a. 

Stockbridge  —  Dana,  75  ;  Rice  and  Gregory,  243a. 

Trumbull  —  Hobbs,  156. 

western  Connecticut  —  Dana,  49;    Hunt,  170;    Rice  and  Gregory, 
243a. 
Limestone  formation  —  Hitchcock,  138. 
Limonite,  mines  —  Putnam,  235. 

Trumbull —  Hobbs,  156. 
Lindsley,  H.  W.,  Building  stones  and  the  quarrv  industry  —  Lindsley, 

187. 
Lineaments  of  the  Atlantic  border  region  —  Hobbs,  161. 
Lisbon,  geology  —  Percival,  229. 
Litchfield,  chalybeate  springs  —  Pierce,  233. 

geology — Percival,  229:    Rice  and  Gregory,  243a. 

igneous  rocks  —  Rice  and  Gregory,  243a. 

map  —  Bradlej^  501. 

minerals  —  Brace,  9. 

schists  and  gneisses  —  Hunt,  167. 

sewage  conditions  —  Rafter,  240. 
Litchfield  county,  tour  in  —  Silliman,  265. 
Lithiophilite.  Branchville  —  Brush   and  Dana,   11. 

production  —  282. 
Little  Falls,  fossil  fish  —  Davis,  "/•]. 
Little  pond,  map  —  Petros,  579. 

moving  bowlders  —  Lee,  186;    Petros,  222. 
Long  Hill,  map  —  Hobbs,  561. 

tungsten  mine — -  Gurlt,   126;   Hobbs,   156,   159. 
Loomis,  L  F.,  The  town  of  Chatham  —  Loomis,  188. 


I06  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

Loper,  S.  W.,  Fossils  of  anterior  and  posterior  shales  —  Loper,   189. 

Lost  volcanoes  of  Connecticut  —  Davis,  95. 

Loughlin,  G.  F.,  Clays  and  clay  industries  of  Connecticut  —  Loughlin, 

190. 
Lowrey,  T.,  Water  cement  of  Southington  —  Lowrey,  191. 
Lull,  R.   S..  Fossil  foot-prints  of  the  Jura-Trias  of  North   America  — 
Lull,  192. 

Fossils  from  Connecticut  valley  Triassic  —  Lull,  193. 
Lyell,  C,  Fossil  foot-prints  of  birds  and  impressions  of  raindrops  in 

the  valley  of  the  Connecticut  —  Lyell,  194. 
Lyman,  B.  S.,  Some  New  Red  horizons  —  Lyman,  195. 
Lyme,  geology — Percival,  229;  Rice  and  Gregory,  243a. 

granite  —  Newberry,  220. 

red  feldspar  —  Des  Cloiseaux,  102. 
Lyme  granite-gneiss  —  Rice  and  Gregory,  243a. 

M 

Maclure,    W..    Observations   on    the    geology   of   the    United    States  — 

Maclure,  196,  197,  571,  572. 
Madison,  geology- — Percival,  229. 
Magnesium,  Salisbury  —  Lee,  185. 

Magnetic  declination  in  the  United  States  —  Gannett,  121. 
Magnetite  vein  east  of  Norfolk  —  Dana,  69. 
Maltby  pond  —  Dana,  71. 
Mamacoke  gneiss  —  Rice  and  Gregory,  243a. 
Manchester,  copper  mine  —  Valcherville,  285. 

dinosaur  —  Marsh,  202,  203,  205,  206. 

geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 
Manchester  sandy  loam  —  Fippin,  116. 
Manganese,  Salisbury — 'Lee,  185. 

Mansfield,  geology  —  Percival,  229;    Rice  and  Gregory,  243a. 
Manual  of  geology  —  Dana,  75. 

Manual  of  geology  of  Connecticut  —  Rice  and  Gregory,  243a. 
Maps,  Aramamit  river  —  Davis,  531. 

Beckley  station  —  Davis,  518. 

Berlin  —  Percival,  577. 

Bethel  —  Hobbs,  560. 

bowlders  —  Hitchcock,  546. 

Canaan — Pynchon,  581. 

Centerville  —  Dana,    513. 

Chauncy  peak  —  Davis,  523;  Davis  and  Loper,  529;  Davis  and 
Whittle,  531. 

clay  deposits  —  Loughlin,  568. 

Colebrook  —  Emerson,  537. 

Connecticut  —  Chapin,  502 ;  Davis,  522,  524,  525 ;  Dewey,  532 ; 
Gregory,  539;  Gregory  and  Robinson,  539a;  ilitchcock,  542; 
Hobbs,  558,  564;  McGee,  570;  Maclure,  572;  Merrill,  576; 
Percival,  577,  578;  Rice  and  Gregory,  582a;  U.  S.  Geol.  Surv., 
586,  587. 

Connecticut  valley  — Dana,  506,  510,  517;  Davis,  526;  Dorsey  and 
Bonsteel,  <:,33;  Fippin,  538;  Hitchcock,  544,  545,  547;  Lough- 
lin, 568 ;    Russell,  583  ;    Smith,  584. 

Cornwall  — •  Pynchon,  581. 

Danbury  —  Hobbs,  560. 

drainage  —  Davis,  526 ;  Hobbs,  558,  564. 

East  Berlin  —  Rice  and  Gregory,  582a. 

East  Haven  —  Hovey,  565. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  10/ 

East  hill  —  Hobbs,  556. 

East  Rock  —  Dana,  516,  517. 

eastern    United    States  —  Bradley,    501;     Logan    and    Hall,    566; 

Maclure,  572. 
Famiington  —  Davis,  531. 
Farmington  river  —  Rice  and  Gregory,  582a. 
glacial   deposits  —  Loiighlin,   568. 

glacial  strije  —  Hitchcock,  546;    Rice  and  Gregory,  582a. 
Hanging  Hills  —  Davis,  518,  531. 
Hartford  —  Rice,  582. 
Higby  mountain  —  Davis,  523  ;    Davis  and  Loper,  529 ;    Davis  and 

Whittle.  531. 
Holyoke  folio  —  Emerson,  535. 
Hotchkissville  —  Hobbs,  556. 
Housatonic  valley  —  Crosby,  503  ;    Hobbs,  549. 
Lamentation  mountain- — Davis,  523,  526;    Davis  and  Loper,  529; 

Davis  and  Whittle,  531. 
Little  pond  —  Petros,  579. 
Long  hill  —  Hobbs,  561. 
IMaromas  —  Westgate,  589. 
Meriden  —  Davis,  521,  523;    Davis  and  Loper.   S29 ;    Davis  and 

Whittle,  531;    Rice,  582. 
Middletown  —  Rice,  582 ;    Westgate,  589. 
Mill   river  —  Davis,  526. 
Mill  Rock  — Dana,  516. 
mines — Putnam,  580;    Pynchon,  581. 
Mitchell's  spring  —  Hobbs,  556. 
Mount  Carmel  —  Dana,  504,  505,  512. 
Newark  system.     See  Triassic. 
New  Haven  —  Dana,  504,  505.  510,  512,  513,  516. 
New  London  county  —  Mather,  575. 
New  Milford  —  Hobbs.  560. 
Norfolk  —  Emerson,  536,  537. 
North  Canaan  —  Emerson,  537. 
Northeast  pond  —  Petros,  579. 
Notch  mountain  —  Davis  and  Whittle,  531. 
Oliver  Mitchell  brook  — Hobbs,  556. 
Paug  mountain  —  Davis,  520. 

Pomperaug  valley  —  Hobbs,  550,  554,  555,  556,  557,  563. 
Pine  Rock  —  Dana,  516. 

Pond  Rock — 'Davis  and  Whittle,  531 ;   Hovey,  565. 
Quinnipiac  river  —  Davis,  526. 
Red  spring  — Hobbs,  556. 
Robertsville  —  Hobbs,  559. 
Salisbury  —  Dana,    509,    514;     Hobbs,    548,    549;     Petros,    579; 

Pynchon,  581. 
Saltonstall  mountain  —  Davis  and  Whittle,  531 ;    Hovey,  565. 
Sharon — Pynchon,  581. 
Shepaug  river  —  Hobbs,  556. 
Short  mountain  —  Davis,  523. 
Shuttle  meadow  —  Davis,  523. 
South  Britain  —  Hobbs,  552,  556. 
South  Glastonbury  —  Davis,  526. 
South  Manchester  —  Davis,  526. 
Southbury  —  Hobbs,  556. 
Still  river — Hobbs,  559,  560. 
Taconic  area  —  Dana,  511,  514,  515;    Walcott,  588. 


I08  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

Tenmile  river  —  Crosby,  503. 

topographical  atlas  of  Connecticut  —  586,  587. 

Torrington  —  Hobbs,  559. 

Totqket  mountain  —  Davie,  520;   Davis  and  Whittle,  531 ;    Hovey, 

565. 
Triassic  —  Dana,    517;     Davis,    519,    525,    526,    527;     Davis    and 
Whittle,  530;    Hitchcock,  544;    Hobbs,  551 ;   Lyman,  569;    Rice, 
582;  Rice  and  Gregory,  582a. 
Tungsten  mine  —  Hobbs,  561,  562. 

United     States  — Blake     and     Hitchcock,     500;      Bradley,     501; 
Hitchcock,  542,  546;  Logan  and  Hall,  566;    McGee,  570;  Ma- 
clure,  571,  572;    Marcou,  573;    U.  S.  Geol.  Surv.,  585. 
Vineyard  gap  —  Davis,  526. 
West  Rock  —  Dana,  516. 
western    Connecticut  —  Dana,    507,    508,    509,    511;     Hobbs,    548; 

Martin,  574;    Merrill,  576;    Pynchon,  581;    Walcott,  588. 
Windham  county  —  Mather,  575. 
Winsted  —  Hobbs,  559. 
Wintergreen  notch  —  Dana,  516. 
Woodbury  — Davis,  520;  Hobbs,  553,  554,  555,  556. 
Woodstock  pond  —  Eggleston,  5,'^4. 
Marble,  Canaan  —  Newberry,  220. 

described  —  Dana,  75;    Merrill,  218;    Rice  and  Gregory,  243a. 

production  —  282. 

serpentine  and  verd-antique  —  Lindsley,   187;   Rice  and   Gregory, 

243a. 
Stockbridge  — •  Dana,  75. 
Marcasite,  Trumbull  —  Hobbs,  156. 

Marcou,  J.,  Geological  map  of  the  United  States  —  Marcou,  198. 
Geology  of  North  America  —  Marcou,  200. 

Resume    explicatif    d'une    carte    geologique    des       tats-Unis  — 
Marcou,  199. 
Margarodite,  Trumbull  —  Hobbs,  156. 

Markham,  F.  G.,  Volcanic  and  seismic  disturbances  in  southern  Con- 
necticut—  Markham,  201. 
Marl,  discussion — Perry,  231. 

Marlborough,   geology  —  Percival,   229 ;     Rice   and   Gregory,   243a. 
Maromas  granite-gneiss  —  Rice  and   Gregory,  243a;    Westgate,  295. 
Marsh,  O.  C,  biography  —  208. 

Dinosaurs  of  North   America  —  Marsh,  206. 
New  belodont  reptile  —  Marsh,  207. 
Notes  on  Triassic   dinosauria  —  Marsh,  202. 
Notice  of  new  American  dinosauria  —  Marsh,  202. 
Notice  of  new  vertebrate  fossils  —  Marsh,  203. 
Restoration  of  Anchisaurus  —  Marsh,  205. 
Mastodon,  geological  position  —  Warren,  289. 
Mather,  W.  W.,  biography  —  214. 

Fossil  fishes  in  Connecticut  sandstone  —  Mather,  212. 
Geological    map    of    New    London    and     Windham    counties  — 

Mather,  210. 
Geology  and  mineralogy  of  New  London  and  Windham  counties 

—  Mather,  211. 
Geology  of  New  York  —  Mather,  213. 
Section  from  Killingly  to  Haddam  —  Mather,  209. 
Matthew,   W.   D..   Monazite   and   orthoclase   from   South   Lyme  —  Mat- 
thew, 215. 
Meriden,  ash  bed  —  Davis,  87;    Emerson,  iii;    Rice  and  Gregory,  243a. 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  IO9 

excursion  to  Hanging  Hills  —  Dana,  30. 

faults  in  Triassic  formation  —  Davis,  88,  98. 

geology  —  Chapin,  14,  15;  Percival,  229;  Rice  and  Gregory,  243a. 

Hanging  Hills  —  Chapin,   14. 

ice  caves  —  Kimball,  179;    Silliman,  269. 

Lamentation  mountain  —  Chapin,  15. 

lavas  of  Connecticut  — ■  Pynchon,  236. 

maps  — Chapin,  502;    Davis,  521,  522,  523,  529,  531;    Pippin,  538; 
Rice,  582. 

overflow  of  glacial  flood  —  Dana,  41. 

quarries  in  lava  bed  —  Davis,  97,  98. 

sewage  conditions  —  Rafter,  240. 

structure  of  fillings  of  fissures  in  trap  —  Davis,  90. 

trap  sheets  —  Davis,  98,  100. 

Triassic   formation  —  Davis,  82,  93,  98,   100;     Rice  and  Gregory, 
243a. 

volcanic  action  —  Markham,  201. 
Merrill,   G.    P.,    Collection   of   building   and   ornamental    stones    in   the 
United  States  National   Museum  —  Merrill,  218. 

Report  on   building   stones   of  the  United   States  —  Merrill,   217. 
Metamorphic  rocks,  bedding  —  Dana,  62. 
Metamorphism,  comparison  of  New  England  and  India  —  Dana,  67. 

contact — Chapin,  13. 

process  —  Rice  and  Gregory,  243a. 
Meteorite,  Weston  —  Gibb,  122;    Silliman,  261. 
Mica,  Canaan  —  Dana,  27- 

Falls  Village  —  Dana.  37.  40. 

production  —  282. 

Salisbury  —  Lee,  185. 

Trumbull  —  Hobbs,  156. 
Mica  schist  —  Rice  and  Gregory,  243a. 
Mica  slate,  description  —  Dewey,   103. 

New  London  and  Windham  counties  —  Mather,  211. 

Salisbury  —  Lee,  185. 
Mica  slate  formation — -Hitchcock,  138. 
Micaceous  gneiss,  Groton  —  Hunt,  169. 
Microlite,  Haddam  Neck  —  Bowman,  8. 
Microscopic  sections  of  traps  —  Frazer,  117. 

Middlebury,  geology  —  Percival,  229;    Rice  and  Gregory,  243a. 
Middlefield,  foot-prints  —  Hitchcock,   146. 

trap  sheets  —  Davis,  98,  loo. 
Middletown,  clay-working  —  Loughlin,   190;   Ries,  245. 

coal  —  Hitchcock,  136. 

cobalt  —  Maclure,    196.  • 

foot-prints  —  Hitchcock,   144,   146. 

geology  — ■  Percival,  229 ;    Rice  and  Gregory,  243a. 

hornblende-biotite   gneiss  —  Merrill,   217. 

magnetic  declination  —  Gannett,   121. 

maps  —  Rice,  582 ;    Westgate,  589. 
Middletown  gneiss  —  Rice  and  Gregory,  243a. 
Milford,  chlorite  slate  —  Hitchcock,  136. 

geology  —  Percival,  229;    Rice  and  Gregory,  243a. 

magnetic  declination  —  Gannett,  121. 
Milford  chlorite  schist  —  Rice  and  Gregory,  243a. 
Mill  river,  ancient  —  Rice  and  Gregory.  243a. 

discharge  of  Connecticut  —  Dana,  56. 

map  —  Davis,  526. 


no  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

Mill  Rock,  described  —  Dana,  72. 

garnet  —  Dana,  22. 

glacial  phenomena  —  Blake,  7. 

map  —  Dana,   516. 
Milldale,  clays  —  Loughlin,  190. 
Miller,  S.  A.,  North  American  Mesozoic  and  Cenozoic  geology  —  Miller, 

219. 
Millstone    point,    granite  —  Kemp,     177;      Newberry,    220;      Rice    and 

Gregory,  243a ;  Winchell,  300. 
Mineral  resources  of  Connecticut  —  Shepard,  258;    Silliman,  263;    U.  S. 

Geol.  Surv.,  282. 
Mineral   waters,   production  —  282. 
Mineralogical  and  geological  observations  on  New  Haven  and  vicinity 

—  Silliman,  262,  264. 
Mineralogical    composition   of  the   normal   Mesozoic   diabase  —  Hawes, 

130. 
Mineralogy,  miscellaneous  observations  —  Brongniart,   10. 

notes  —  Hobbs,  153. 

Salisbury  —  Lee,  185. 
Minerals,   Branchville  —  Brush  and  Dana.   il. 

Haddam  —  Bowman,  8;    Webster,  290. 

list  of  in  Connecticut  —  Cochrane,   17. 

localities  —  Hitchcock,   137. 

See  also  names  of  indiz'idual  inincrals. 
Mines,  Bristol  —  Benjamin,  5;    Valcherville,  285;    Hulbert,   165;  Whit- 
ney and  Silliman,  297. 

cobalt  —  Loomis,  188. 

copper  —  Hulbert,  165;  Whitney  and  Silliman,  297. 

iron  —  Eckel,   108;    Pynchon,  238. 

map  —  Putnam,  580;    Pynchon,  581. 

Salisbury — Eckel,  108;   Pynchon,  238;   Shepard,  257. 
Mitchell's  spring  —  Hobbs,  556. 

Molybdena,  Pettipaug  and  Saybrook  —  Silliman,  263. 
Monazite,  Lyme  —  Matthew,  215. 
Monroe,  geology  ^ — Percival,  229;    Rice  and  Gregory,  243a. 

Lane's  mine  —  Hitchcock,   137. 
Monson  granite-gneiss  —  Rice  and  Gregory,  243a. 
Montville,  bowlders  —  Wells,  294. 

geology  —  Percival.  229;    Rice  and  Gregorj^  243a. 
Mount  Carmel,  maps  —  Dana,  504,  505,  512. 

volcanic  neck  —  Davis,  95. 
Mount  Prospect,  igneous  rock  —  Rice  and  Gregory,  243a. 

spring  —  Pierce,  233. 
Mountains,  formation  —  Hall,  127. 
Moving  rocks  of  Salisbury  —  Lee,  186;    Petros,  232. 
Muscovite,  Haddam  Neck  —  Bowman,  8. 
Mystic,  granite  —  Winchell,  300. 

N 

Natchaug  river,  former  ice  dams — ^  Koons,   181. 

New  and   remarkable  mineral   locality,   Branchville  —  Brush  and   Dana, 

II. 
New  Britain,  indurated  bitumen  —  Dana,  44. 

trap  sheets  —  Davis,  98,   100;   Rice  and  Gregory,  243a. 
New  Canaan,  geology — Percival.  229;    Rice  and  Gregory,  243a. 
New  Fairfield,  geology —  Percival,  229;    Rice  and  Gregory,  243a. 

map  —  Dana,  507. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  Ill 

New  Hartford,  geology — Percival,  229;    Rice  and  Gregory,  243a. 
New  Haven,  Allegheny  system  —  Marcou,  198. 

clay-working  —  Loughlin,  190,  Ries,  245. 

discharge  of  flooded  Connecticut  —  Dana,  56. 

fossil  fishes  —  Mather,  212.  -^ 

fossils  —  Marsh,  207. 

i^our  Rocks  —  Dana,  71. 

garnet  with  trap  —  Dana,  22. 

geology    of    region  — Dana,    29,    38;     Percival,    229;      Rice    and 
Gregory,  243a  ;  Silliman,  265. 

magnetic  declination — Gannett,  121. 

maps  — Dana.  504,  505,  510,  512,  513,  516,  517. 

mica  slate  —  Dana,  'i'j. 

mineralogical    and    geological    observations  —  La    Metherie,    184; 
Silliman,  262. 

mineralogy — Silliman,  260,  264. 

origin  of  deposits  —  Dana,  58. 

Quaternary  —  Dana,  31. 

rocks  of  chloritic  formation  —  Hawes,  129. 

serpentine  —  Brongniart,  10. 

Stegomus  arcuatus  —  Marsh,  207. 

till  ridge  —  Dana,  64. 

trap  —  Dana,  21,  36,  74;    Davis,  98,  100;    Porter,  234. 

Triassic   formation  —  Davis,  82,  98;    Rice  and  Gregory,  243a. 

volcanic  activity  —  !Markham.  201. 
New  Haven  count}-,  tour  in  —  Silliman,  265. 
New  Jersey,  report  —  Dana,  55. 

New  London,  geology  —  Mather,  211  ;  Percival,  229;  Rice  and  Gregory, 
243a. 

granite  —  Winchell,  300. 
New  London  county,  geology  —  Mather,  211. 

map  —  blather.  210. 
New  London  granite-gneiss  —  Ric'e  and  Gregorj-,  243a. 
New  Milford.  description  —  Silliman.  265. 

geology  —  Percival,  229  ;    Rice  and  Gregory,  243a. 

map  —  Hobbs,  560. 

minerals — Brace,  9. 

steel  ore  mines  —  Shepard,  257. 
New   Preston,   description  —  Silliman,  265. 
Newark  system  —  Russell,  253. 

maps  —  Hobbs.  551;    Russell,  583. 

Pomperaug  valley  —  Hobbs,  155. 

See  also  Triassic. 
Newberry,  J.  S.,  Fossil  fishes  and  fossil  plants  of  Triassic  rocks  of  New 
Jersey  and  the  Connecticut  valley  —  Newberry,  221. 

Limestone  of  Greenwich  —  Newberry,  220. 
Newell,  F.  H.,   Connecticut  river  —  Newell,  223,  224. 
Newtown,  geology — Percival,  229;    Rice  and  Gregory.  243a. 
Niantic.  granite  —  Newberry.  220. 
Niles,  W.  H..  Geological  agency  of  lateral  pressure  exhibited  by  certain 

rock  movements — -Niles,  225. 
Norfolk,  Archaean  limestone  and  other  rocks  —  Dana,  69. 

geology  —  Emerson.  113:    Percival,  229;    Rice  and  Gregory,  243a. 

glacial   scratches  —  Cornish,   19. 

map  —  Emerson,  536.  537. 

pseudomorphs  —  Hobbs,  149. 
Norfolk  sandy  loam  —  Fippin,  116. 


112  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.       [Bull. 

North  America  in  the  ice  period  — Hitchcock,  134. 

North  American  Mesozoic  and  Cenozoic  geology  and  paleontology  — 

Miller,  219. 
North  Branford,  geology — Percival,  229;    Rice  and  Gregory,  243a. 
North  Canaan,  geology  —  Emerson,  113. 

map  —  Emerson,  537. 
North  Guilford,  fossils  — ■  Loper,  189. 
North  Haven,  excursion  —  Dana,  71. 

geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 
North  Stonington,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 
Northeast  pond,  map  —  Petros,  579. 

moving  rocks  —  Lee,  186;    Petros,  232. 
Northford,  ice  caves  — Kimball,  179;    Silliman,  269. 
Norton.  H.,  Glacier  scratches  in  Goshen  —  Norton,  226. 
Norwalk,  geology  —  Percival,  229;    Rice  and  Gregory,  243a. 

granite  —  Newberry,  220. 

magnetic  declination  —  Gannett,  121. 
Norwich,  bowlders  —  Wells,  293. 

geology  —  Percival,  229  ;    Rice  and  Gregory,  243a. 
Notch  mountain,  map — Davis,  531. 

trap  —  Davis,  98,  100. 


Oliver  Mitchell  brook,  map  —  Hobbs,  556. 

Orange,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 

Orange  phyllite  —  Rice  and  Gregory,  243a. 

Ore  hill,  mines  —  Eckel,  108;  Putnam,  235. 

Origin  of  grand  outline  features  of  the  earth  —  Dana,  24. 

Origin   of  stratification  —  Wells,  292. 

Ornithichnology  —  Hitchcock,   139,   146. 

Outline  of  the  geology  of  England  and  Wales  —  302. 

Oxford,  geology — Percival,  229;    Rice  and  Gregory,  243a. 


Paleontologj'  of  New  York  —  Hall,   127. 

Palisade  ranges,  Triassic  sandstone  —  Dana,  34. 

Pang  mountain,  map  —  Davis,  520. 

Peat,  discussion  —  Perry,  231. 

Peet,  C.  E.,  Glacial  and  post-Glacial  history  —  Peet,  22^. 

Pegmatite,  Canaan  —  Hobbs,  153. 

description  —  Rice  and  Gregory,  243a. 
Peneplain,  Cretaceous  — •  Davis,  94,  98. 
Percival,  J.  G.,  biography  —  230. 

map  of  the  trap  belt  of  central  Connecticut  —  Dana,  JZ- 

Notice  of  locality  of  sulphate  of  barytes  —  Percival,  228. 

Report  on  the  geology  of  the   State  of  Connecticut  —  Percival, 
229. 

survey,  history  of  —  Gregory,  124c. 
Perry,  J.  B.,  Hints  toward  the  post-Tertiary  history  of  New  England  — 

Perry,  231. 
Petroleum,  Salisbury  —  Lee,  185. 
Petros,  Moving  rocks  of  Salisbury  —  Petros,  232 
Pettipaug,  molybdena  —  Silliman,  263. 
Phyllite,  Orange  —  Rice  and  Gregory,  243a. 

Pomfret — Rice  and  Gregory,  243a. 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  113 

Physical  geography,  Connecticut  —  Rice,  243 ;  Rice  and  Gregory,  243a. 

Connecticut  lowland  —  Burr,  12. 

southern  New  England  —  Davis,  91,  96. 
Physical  history  of  Triassic  formation  in  New  Jersey  and  Connecticut 

valley  —  Russell,  249. 
Pierce,  ].,  Chalybeate  spring  at  Litchfield  —  Pierce,  233. 
Pig-iron,  production  —  282. 
Pine  Rock,   description  —  Dana,  72  ;    Davis,  98. 

map  —  Dana,  516. 
Pitchstone  —  Emerson,   iii. 

Plainfield,  geology  —  Percival,  229  ;    Rice  and  Gregory,  243a. 
Plainfield  quartz  schist  —  Rice  and  Gregory,  243a. 
Plants,  fossil  —  Loper,  189;    Newberry,  221. 
Plumbago,  Cornwall  —  Silliman,  263. 

Plymouth,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 
Podunk  sand}^  loam  — Dorsey,  106;    Pippin,  116. 
Pomfret,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 

magnetic  declination — -Gannett,   121. 
Pomfret  phyllite  —  Rice  and  Gregory,  243a. 
Pomperaug  valley,  faulted  area  of  Newark  rocks  —  Hobbs,  154. 

fossil  plants  —  Knowlton,  180.  ' 

glacier  action  —  Hobbs,  158. 

key  areas  —  Hobbs,   160. 

maps  — Hobbs,  550,  554,  555,  556,  557,  563. 

Newark  system — -Hobbs,  155. 

structure  —  Davis,  83,  98;  Hobbs,  155. 
Pond  Rock  —  Hovey,  565. 
Porcelain  clay,  Somers  —  Hitchcock,  138. 

Porter,  T.  D.,  Floetz  trap  formation  in  Connecticut  —  Porter,  234. 
Portland,  foot-prints  —  Hitchcock,  144,  146. 

geology  —  Percival,  229  ;    Rice  and  Gregory,  243a. 

quarries  —  Lindsley,  187;  Johnston,  174. 

sandstone  —  Johnston.  174;  Merrill,  217;  Rice  and  Gregory,  243a. 

spontaneous  movements  of  sandstone  —  Johnston,  174. 
Post-Tertiary  history  of  New  England  —  Perry,  231. 
Pot-holes,  Gurleyville  —  Koons.  182. 
Pottery  manufacture  —  Loughlin,  190. 
Poughquag  quartzite  —  Rice  and  Gregory,  243a. 
Prehnite,  Woodbury  —  Hitchcock,  137. 

Preston,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 
Preston  gabbro-diorite  —  Rice  and  Gregory,  243a. 
Primary  system  — -  Percival,  229. 
Profiles,  rivers  —  282. 

Progress  of  geology  for  1882  —  Hunt,  171. 
Prospect,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 
Prospect  porphyritic  gneiss  —  Rice  and  Gregory,  243a. 
Pseudomorplis,  northwestern  Connecticut  —  Hobbs,  149. 

Taconic  region  —  Hobbs,  149. 
Putnam,  magnetic  declination — -Gannett,   121. 
Putnam,  B.  T.,  Iron  ore  collected  in  Connecticut  —  Putnam,  235. 
Putnam  gneiss  —  Rice  and  Gregory,  243a. 
Pynchon,  W.  H.  G.,  Ancient  lavas  of  Connecticut — Pynchon,  236. 

Common   evidences  of  glacial   action  in   Connecticut  —  Pynchon, 

237- 
Drilled  wells  of  Triassic  area  —  Pynchon,  239. 
Iron  mining  in  Connecticut  —  Pynchon,  238. 
Pyrite,  crystals  in  meteorite  —  Gibb,  122. 

8 


114  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.       [Bull. 

Pyrite  mines,  Berlin  —  Percival,  228. 

Trumbull  —  Hobbs,  156. 
Pyroxene,  TruBibull  —  Hobbs,  156. 

Q 

Quarries,  between  New  Haven  and  New  London — -Kemp,  177;   Mather, 
211. 

Connecticut  —  Lindsley,  187;    Merrill,  218. 

lava  beds,  Meriden  —  Davis,  97. 
Quartz,  Berlin  —  Percival,  228. 

Falls  Village — Dana,  ZJ- 

description  —  Dewey,  103  ;    Hitchcock,  137. 

formation  —  Dana,  63. 

granular  —  Mather,  209,  211. 

Haddam  Neck  —  Bowman,  8. 

Lane's  mine  —  Hitchcock.  137. 

Lantern  hill  —  Kemp,   176. 

production  —  282. 

rose,   Salisbury  —  Lee,   185;     Southbury  —  Silliman,   263;    Trum- 
bull —  Hobbs,  156. 
Quartz  schist,  Plainfield,  Woodstock  —  Rice  and  Gregory,  243a. 
Quartzite,  associated  rocks  —  Dana,  2>7- 

Canaan  — Dana,  35,  2,7  \    Walcott,  286,  288. 

decay  —  Dana,  63. 

Poughquag  —  Rice  and  Gregory,  243a. 
Quaternary  or  post-Tertiary  of  New  Haven  region  —  Dana,  31. 
Quinnipiac  river,  clays  —  Loughlin,  190. 

discharge  of  Connecticut  river  — •  Dana,  56. 

discovery  of  reindeer  bones —  Dana,  41. 

former  course  —  Kiimmel,  183;    Rice  and  Gregory,  243a. 

map  —  Davis,  526. 


Rafter,  G.  W.,  Sewage  irrigation  —  Rafter,  240. 
Raindrops,  impressions,  Connecticut  valley  —  Lyell,  194. 
Redding,  Garnet  Rock  —  Seeley,  254. 

geology  —  Percival,  229 ;    Rice   and   Gregory,  243a. 
Red  spring,  map — -Hobbs,  556. 

Rice,  W.  N.,  First  biennial  report  of  the   Commissioners  of  the   State 
Geological    and    Natural    History    Survey  —  Rice,    242. 
Physical   geography  and  geology  of  Connecticut  —  Rice,  243. 
Trap   and   sandstone   in   gorge   of  the   Farmington   river  —  Rice, 
241. 
Rice,  W.   N.,  and  Gregory,  H.   E.,  Manual  of  Connecticut  geology  — 

Rice  and  Gregory,  243a. 
Ridgefield,  geology — -Percivsl,  229;    Rice  and  Gregory,  243a. 
Ries,  H.,  Clays  of  the  United  States  — Ries,  245. 

Limestone    quarries    of    eastern    New    York,    western    Vermont, 
Massachusetts,  and  Connecticut  —  Ries,  244. 
River  map  —  Hobbs,  558. 
River  system  of  Connecticut  —  Hobbs,  154. 
Rivers,  run-off  —  Gregory,  124a. 
Roaring  brook,  trap  —  Davis,  98,  100. 
Robertsville,  map  —  Hobbs,  559. 

Robinson,  H.  H.,  and  Gregory,  H.  E.,  Preliminary  geological  map  of 
Connecticut  —  Gregory  and  Robinson,  124c. 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  II5 

Rocks,  character  and  age  —  Hitchcock,  133. 

characters  used  in  defining  —  Dana,  45. 

classification  —  Merrill,  218. 

decay — Silliman,  268. 

list  in  Connecticut  —  Cochrane,  17. 

metamorphic  —  Rice  and  Gregory,  243a. 

origin  of  bedding  in  metamorphic  —  Dana,  62. 

origin  of  crystalline  —  Hunt,  168. 

syenitic  and  hornblendic  —  Mather,  209. 

unconsolidated  materials —  Percival,  229. 

water  capacity  —  Gregory,  124a. 
Rocks  of  the  chloritic  formation  on  the   western  border  of  the   New 

Haven  region  —  Hawes,  129. 
Rocky  Hill,  foot-prints  —  Hitchcock,  139,  144. 

indurated  bitumen  in  trap  —  Dana,  44. 

trap  —  Davis,  98;  Rice  and  Gregory,  243a;  Silliman,  272. 
Rogers,  H.  D.,  Cause  of  crescent- formed  dikes  of  trap  —  Rogers,  247. 

Nature  of  dip  of  Triassic  of  the  eastern  United  States  —  Rogers, 
246. 

Sketch  of  the  geology  of  the  United  States  — ■  Rogers,  248. 
Round  Hill,  till  ridge  —  Dana,  64;    Davis,  81. 
Roxbury,  geology — Percival,  229;    Rice  and  Gregory,  243a. 

iron — Putnam,  235. 
Russell,  I.  C,  Former  extent  of  Triassic  formation  in  the  United  States 
—  Russell,  251. 

Newark  system  —  Russell,  253. 

Occurrence  of  a  solid  hydrocarbon  in  eruptive  rocks  —  Russell, 
250. 

Physical  history  of  Triassic  formation  —  Dana,  46 ;    Russell,  249. 

Subaerial    decay   of   rocks,    and   origin    of  red   color   of  certain 
formations  —  Dana,  68;    Russell,  252. 


Salem,  geology — Percival,  229;    Rice  and  Gregory,  243a. 
Salisbury,  brown  hematite  —  Eckel,  108. 

description  —  Silliman,  265. 

ending  of  synclinal  in  Taconic  range  —  Dana,  59. 

geological  structure  —  Hobbs,  151. 

geology   and   mineralogy  —  Lee,    185;     Percival,   229;     Rice   and 
Gregory,  243a. 

ice  caves  —  Kimball,  179 ;    Silliman,  270. 

iron  —  Dewey,  203;    Eckel,  108;    Hitchcock,  137,  138;    Shepard, 

257- 
maps  — Dana,  509,  514;    Hobbs,  548,  549;    Logan,  566;    Petros, 

579;    Pynchon,  581. 
moving  rocks  —  Lee,  186 ;    Petros,  232. 
schorl  —  Lee,  185. 
skeletons  —  Lee,  185. 
slate  —  Dana,  2,1  \   Lee,  185. 
Taconic  range  —  Dana,  59;    Hobbs,  150. 
talc  —  Lee,  185. 
titanium  —  Lee,  185. 
tourmaline  —  Lee,  185. 
Saltonstall,  excursion  —  Dana,  71. 

maps  —  Dana,  504,  512;    Davis,  527,  531;    Hovey,  565. 

trap  —  Dana,  71;   Davis,  98,  100;   Hovey,  162;   Rice  and  Gregory, 

243a. 


Il6  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [BuU. 

Sand,  formation  —  Dana,  63. 

Sandstone,  action  of  humus  acid  —  Julien,  175. 

age  of  Connecticut  —  Agassiz,    i ;   Akerly,  3 ;    Dana,  75 ;   Hitch- 
cock, 138,  146;  Jackson,  173;  Lyell,  194;  Lyman,  195;  Marcou, 

198,  199;  Mather,  213;  Rice  and  Gregory,  243a;   Russell,  249, 

253;  Whitney  and  Silliman,  297. 
bowlders  —  Dobson,  104. 
brown  and  red  —  Lindsley,  187. 
building  stone  —  Merrill,  218. 
color  — Dana,  68;    Russell,  252. 
comparison  of,  to  Old  Red  of  England  —  302. 
conditions   of  accumulation  —  Davis,  83,  98;   Rice   and   Gregory, 

243a. 
Connecticut  valley  —  302;    Dana,  46,   55,  68;    Davis,  82,  83,   84, 

85,  86,  89,  92,  93,  98;    Deane,  loi  ;    Hitchcock,  132,  146;    Hunt, 

171;     Marcou,    198;     Rice   and   Gregory,   243a;     Silliman,   266; 

Smith,  279;    Whelpley,  296. 
Liassic  age  —  Whitney  and  Silliman,  297. 
Longmeadow  —  Wells,  291. 
maps  —  Dana,  517;    Davis,  519,  525,  526,  527;    Davis  and  Whittle, 

530;     Hitchcock,   544;     Hobbs,   551;     Lyman,   569;     Rice,   582; 

Rice  and  Gregory,  582a. 
New  Haven  —  Silliman,  260,  262. 
New  Red  — Dana,  25,  55;  Hitchcock,  138;  Lyman,  195;  Marcou, 

199;    Silliman,  267,  268,  275,  277. 
Oriskany  —  Hall,  127. 
Pomperaug  valley  —  Hobbs,   155. 
Portland  — Johnston,  174;  Merrill,  217. 
production  —  282. 
relation  to   Triassic  trap  —  Dana,   57,   71,   T2,  72,,  74;    Davis,   78, 

79,  82,  83,  84,  87,  92,  93,  98;     Davis   and   Whittle.    100;     Rice 

and  Gregory,  243a. 
Rocky  Hill  — Lyell.   194. 
stratification  —  Wells.  292. 
Tariffville  —  Rice,  241. 
Triassic,  of  Palisade  ranges  —  Dana,  34. 
Wallingford  — •  Chapin,  13. 
Woodbury  —  Hitchcock,  137. 
See  also  Triassic. 
Saybrook,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 
magnetic  declination- — Gannett,  121. 
molybdena  —  Silliman,  263. 
Scantic  river,  former  course  —  Kiimmel,  183. 
Scapolite,  Salisbury  —  Lee,  185. 

Trumbull  —  Hobbs,  156. 
Scapolite  rocks  —  Hitchcock,  138. 
Schist,  Berkshire  —  Rice  and  Gregory,  243a. 
Bolton  —  Rice  and  Gregory,  243a. 
Brimfield  —  Rice  and  Gregory,  243a. 
description  —  Hitchcock,  131;    Rice  and  Gregory,  243a. 
Hartland  —  Rice  and  Gregory,  243a. 
Hoosac  —  Emerson,  112. 
Milford  chlorite  —  Rice  and  Gregory,  243a. 
northwestern  Connecticut  —  Dana,  53,  61. 
Plainfield  quartz  — Rice  and  Gregory,  243a. 
Scotland  —  Rice  and  Gregory,  243a. 
Taconic  —  Dana,  35>  40,  43-  47,  48,  49,  S3,  59,  65;    Emmons,  115; 

Walcott,  286,  287. 


No.    8.]         BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  II7 

Woodstock  quartz  —  Rice  and  Gregory,  243a. 
Schorl,  Salisbury  —  Lee,  185. 

See  also  Tourmaline. 
Scotland  schist  —  Rice  and  Gregory,  243a. 
Seeley,  L.,  Garnet  Rock  —  Seeley,  254. 

Seismic  disturbances  in   southern  Connecticut  —  j\larkham,  201. 
Serpentine  rocks  —  Merrill,  218. 

Sewage  conditions  of  various  localities  —  Rafter,  240. 
Sewage  irrigation  —  Rafter,  240. 

Shaler,  N.  S.,  Fluviatile  swamps  of  New  England — Shaler,  255. 
Shales,  action  of  humus  acids  —  Julien,  175. 

Chicopee  —  Emerson,   1 12. 

conditions  of  accumulation  —  Davis,  83 ;    Rice  and  Gregory,  243a. 

Connecticut  Triassic  —  Hunt,   171. 

ferruginous   and  bituminous  —  Russell,  253. 

stratification  —  Wells.  292. 

Woodbury  —  Hitchcock,  137. 
Sharon,  geolog>' — Percival,  229;    Rice  and  Gregory,  243a. 

kaolin — •  Dana,  63. 

map — Pynchon,  581. 
Sheldon,  J.  M.  A.,  Concretions  from  Champlain  clays  of  the  Connecti- 
cut valley  —  Sheldon,  256. 
Shepard,  C.  U.,  biography  —  259. 

Notice  of  a  mine  of  spathic   iron   at   New   ]Milford   and  of   iron 
works  at  Salisbury  —  Shepard,  257. 

Report  on  the  Geological  Survey  of  Connecticut  —  Shepard,  258; 
Silliman,  2yS- 
Shepaug  river,  map  —  Hobbs,  556. 
Sherman,  geology — Percival,  229. 
Sherman  hill,  glacial  action  —  Hobbs.   158. 
Shetucket  river,   former  ice   dams  —  Koons.   181. 

height  —  282. 
Short  mountain  —  Davis,  523. 
Shuttle  meadow,  map — Davis,  522. 

trap  sheets  —  Davis,  98,  100. 
Sienite.     See  Syenite. 
Silicious  sinter,  Salisbury — -Lee,   185. 
Silliman.  B.,  Account  of  meteor,  Weston  —  Silliman,  261. 

biography  —  274. 

Course  of  lectures  —  Silliman,  271. 

Ice  caves  at  Meriden  and  Northford  —  Silliman,  269. 

Ice  caves  at  Salisbury  —  Silliman,  270. 

Igneous  origin  of  some  trap  rock  —  Silliman,  272. 

Localities  of  mineral  and  animal  remains  —  Silliman,  263. 

]\Iineralogical   and   geological   observations   on   New   Haven   and 
its  vicinit\'  —  La  Metherie,  184;    Silliman,  262,  264. 

Notice  of  "  A  Report  on  the  Geological  Survey  of  Connecticut," 
Shepard  —  Silliman,  27^. 

Notice  of  "Geological  Essays,"  Hayden — Silliman,  268. 

Remarks  on  a  short  tour  between  Hartford  and  Quebec,  1819  — 
Silliman,    266. 

Remarks  on  red*  sandstone  of  Connecticut  —  Silliman,  267. 

Sketch  of  mineralogy  of  town  of  New  Haven  —  Silliman,  260. 

Sketches  of  tour  in  the  counties  of  New  Haven  and  Litchfield  — 
Silliman,  265. 
Silliman.   B.,   Jr.,   Dr.    Percival   and   crescent-formed    dikes  —  Silliman, 
275- 


Il8  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [BuU. 

Fossil  trees  found  at  Bristol  —  Silliman,  277. 

Report  of  the  intrusive  traps  of  the  New  Red  sandstone  of  Con- 
necticut—  Silliman,  276. 
Silliman,  B.,  Jr.,  and  Whitney,  J.   D.,   Notice  of  the  geological  posi- 
tion and  character  of  copper  mine  at  Bristol  —  Whitney  and 
Siliman,  297. 
Simsbury,  geology  —  Percival,  229 ;  Rice  and  Gregory,  243a. 
Skeletons,  Salisbury  —  Lee,  185. 
Slate,  action  of  humus  acid  —  Julien,  175. 

Salisbury  —  Lee,  185. 
Slate  formations  —  Hitchcock,  138. 
Smith,  A.,  On  the  water  courses  and  the  alluvial  and  rock  formations  of 

the  Connecticut  valley  —  Smith,  279. 
Smock,    J.    C,    Geological-geographical    distribution    of    iron    ores  — 

Smock,  280. 
Soapstone,  Somers  —  Hitchcock,  138. 
Soil,  crystallines  —  Maclure,  197. 

distribution  —  Emmons,   115;    Percival,  229. 

formation  —  Silliman,  268. 

glacial  —  Rice  and  Gregory,  243a. 

nature  and  fertility  —  Maclure,  197. 

tobacco  —  Killebrew,  178. 
Soil  survey,  Connecticut  valley  —  Dorsey,  106;  Fippin,  116. 
Somers,  coal  —  Hitchcock,  136. 

geology  — •  Percival,  229 ;    Rice  and  Gregory,  243a. 

porcelain  clay  —  Hitchcock,  138. 

soapstone  —  Hitchcock,  138. 
South  Britain,  fossil  wood  • —  Knowlton,  180.  \ 

map  — Hobbs,  552,  557. 
South  Glastonbury,  map  —  Davis,  526. 
South  Hadley,  foot-prints  —  Hitchcock,  146. 
South  Lyme,  monazite  and  orthoclase  —  Matthew,  215. 
South  Manchester,  map  —  Davis,  526. 
Southbury,  description  of  coniferae  —  Hitchcock,  142. 

geology  —  Hobbs,  155;    Percival,  229;    Rice  and  Gregory,  243a. 

indurated  bitumen  —  Dana,  44. 

map  —  Hobbs,  556. 

petrified  trees  —  Hitchcock,  137. 

rose  quartz  —  Silliman,  263. 

Triassic  —  Davis,  83,  98;    Hobbs,  155;    Russell,  253. 
Southern    New   England,   during  the    melting   of  the   great   glacier  — 
Dana,  41. 

physical  geography  —  Davis,  91,  96. 
Southington,  coal  —  Hitchcock,  136;    Silliman,  263. 

fossils  —  Loper,  189. 

geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 

water  cement  —  Lowrey,  191. 
Sphene,  Trumbull  —  Hobbs,   156. 
Spodumene,  production  —  282. 

Spontaneous  movements  of  rocks  —  Johnston,  174;  Niles,  225. 
Springs  —  Gregory,  123,  124. 
Stamford,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 

magnetic  declination  —  Gannett,   121. 
Staurolite  crystals  and  Green  mountain  gneisses  of  Silurian  age  —  Dana, 

40. 
Steel,  production  —  282. 

Salisbury  —  Lee,  185. 


No.    8.]        BIBLIOGRAPHY    OF    CONNECTICUT    GEOLOGY.  II9 

Stegomus  arcuatus  from  New  Haven  —  Marsh,  207. 

Sterling,  geology- — Percival,  229;  Rice  and  Gregor>%  243a. 

Sterling  granite-gneiss  —  Rice  and  Gregory,  243a. 

Still  river,  map  —  Hobbs,  559,  560. 

Still  rivers  of  western  Connecticut  —  Hobbs,  157. 

Stockbridge  limestone  and  related  rocks  —  Dana,  75 ;   Rice  and  Gregory, 

243a. 
Stodder,  C.,  On  the  occurrence  of  clay  on  the  banks  of  Farmington 

river — Stodder,  281. 
Stones,  building  —  Merrill,  217. 

minerals  of  —  Merrill,  21S. 
Stonington,  geolog\-  —  Percival,  229 ;    Rice  and  Gregory,  243a. 
Stony  Creek,  excursion  —  Dana,  71. 

granite  —  Kemp,   177;    Newberry,  220;    Winchell,  300. 

stratified  rocks  —  Dana,  62. 
Stony  Creek  granite-gneiss  —  Rice  and  Gregory-,  243a. 
Stratford,  geology  —  Percival.  229 ;  Rice  and  Gregory-,  243a. 
Stratification,  origin  —  Wells,  292. 
Strength  of  New  England  granites  —  Winchell,  300. 
Structural  value  of  the  trap  ridges  of  the  Connecticut  vallev  —  Davis, 

79,  98. 
Structure  of  the  Triassic  formation  —  Davis,  83,  84,  98;    Rice  and  Greg- 
ory, 243  a. 
Suffield,  coal  —  Silliman,  26^. 

fossil  foot-prints  —  Hitchcock,  144,  146. 

geology — Percival,  229. 
Suffield  clay  —  Dorsey.  106;    Pippin,  116. 
Sulphate  of  alumina.  Salisbun."  —  Lee,  185. 
Sulphate  of  ban.-te5,  Berlin  —  Percival,  228. 
Sulphur,  Salisbury  —  Lee,  185. 

Surveys  of  Connecticut  —  Gregory  and  Robinson,  124c. 
Swamps,  fluviatile  —  Shaler,  255. 
Syenite,  New  London  and  Windham  counties  —  Mather,  211. 


Taconic  region,  maps  —  Dana,  511,  514,  515;    Walcott,  58S. 

pseudomorphs  —  Hobbs,   149. 

rocks  and  stratigraphy  —  Dana,  35,  37,  40,  43,  47,  49,  53,  39,  61, 
65;   Hobbs,  150,  151;   Hunt,  167,  168,  170;   Walcott,  286. 

S}Tiopsis  of  conclusions  —  Walcott,  287. 
Taconic  system,  geological  age  —  Dana,  47,  48,  53,  59,  65,  75 ;  Emmons, 
115;  Hunt,  168,  170;  Walcott,  286,  ^7,  289.   / 

what  constitutes  —  303. 
Talc,  Salisbury  —  Lee,  185. 
Talcose  schist,  Vermont  —  Hitchcock,  131. 
Talcose  slate  —  Hitchcock,  138. 
Tariflfville,  trap  and  sandstone  —  Rice,  241. 
Tectonic  geography  —  Hobbs,  160. 
Tenmile  river,  map  —  Crosby,  503. 

proposed  dams  —  Crosby,  20. 
Terminal  moraine  —  Dana,  60. 
Terrace  formation  in  Connecticut  vallev  —  Dana,  26,  51.  52;    Hitchcock, 

US- 
Thames  river,  former  ice  dams  —  Koons,  181. 
Thimble  islands,  description  —  Dana,  75. 

excursion  —  Dana,  71. 
Thomaston  granite  —  Newberry,  22a 
Thomaston  granite-gneiss  —  Rice  and  Gregory,  243a. 


120  CONNECTICUT    GEOL.    AND    NAT.    HIST.    SURVEY.        [Bull. 

Thompson,  geology — Percival,  229;   Rice  and  Gregory,  243a. 

Tile,  production  —  282. 

Till  ridge  of  New  Haven  —  Dana,  58,  64;    Davis,  8r. 

Titanium,  Salisbury  —  Lee,  185. 

Tobacco  soil  —  Dorsey,  106;    Killebrew,  178. 

Tolland,  garnet  —  Webster,  290. 

geology — Percival,  229;    Rice   and   Gregory,  243a. 
graphite  —  Webster,  290. 
Topaz,  Lane's  mine  —  Hitchcock,   137. 

Trumbull  —  Hobbs,  156. 
Topographic  atlas  of  Connecticut  —  586,  587. 
Topographic  development  of  Triassic  formation  —  Davis,  89. 
Topographic  forms,  date  of  origin  —  Davis,  94. 
Topographic  Survey  of  Connecticut  —  Chapin,  16;  Gregory,  124c. 
Torrington,  geology — Percival,  229;    Rice  and  Gregory,  243a. 

map  —  Hobbs,  559. 
Totoket  mountain,  description  —  Hovey,  162. 
map  — Davis,  520,  531;    Hovey,  565. 
trap — -Davis,  98,  100;    Rice  and  Gregory,  243a. 
Tour  between  Hartford  and  Quebec  in  the  autumn  of  1819 — Silliman, 

266. 
Tourmaline,  Bozrah  - —  Webster,  290. 

Branchville — ^  Brush  and  Dana,  11. 

Haddam  Neck  —  Bowman,  8.  I 

production  —  282. 
Salisbury  —  Lee,   185. 
Tracks  of  large  birds  —  Hitchcock,  139. 
Trap.     See  Triassic  trap. 
Trees,  petrified,  Bristol  —  Silliman,  277. 

Southbury  —  Hitchcock,  137. 
Tremolite,  Salisbury  —  Lee,  185. 

Triassic  coal  —  Hitchcock,  136:    Percival,  229;    Silliman,  263. 
Triassic  formation,  bibliography  —  Davis,  98;   Russell,  253. 
drainage  —  Rice  and  Gregory,  243a. 
faults  — Davis,  83,  84,  85,  86,  87,  88,  89,  98,  99;    Hobbs,    15,=^; 

Rice  and  Gregory,  243a  ;    Russell,  249. 
physical   history  —  Dana,  46,   55,   75;     Davis,   83,   84,   92,  98,   99; 
Frazer,     118;     Hitchcock,    146;     Hobbs,     155:     Jackson,    173; 
Lyell,  T94;   Lyman,  195;      Rice  and  Gregory,  243a;    Smith,  279. 
water  supply  —  Fuller,  119. 
Triassic  limestone  —  Davis,  98;   Lowrey.   191;   Percival,  229. 
Triassic  sandstone,  age  —  Agassiz,  i ;  Akerly.  3 ;  Dana,  75 ;  Davis,  98 ; 
Hitchcock,    136,    138,    146;   Jackson,    173;     Lyell,    194;     Lyman, 
195;   Maclure,  197;   Marcou,  ig8,  199;   Rice  and  Gregory,  243a; 
Russell.  249,  253. 
comparison  with  other  regions  —  Brongniart,  10;    Dana,  34. 
copper    ores,    Bristol  —  Dana,    75;     Hulbert,    165:     Whitney   and 
Silliman,   297;    Granby  —  Benjamin,    5;    Dana,    75;    Hitchcock, 
138:  Manchester  —  ValchervilJe,  285. 
fossils — -Barbour,   4;    Davis,   77.  98;     Deane,    loi  ;     Eaton,    107: 
Hitchcock,  136,  139,  142,  144,  146,  147:    Knowlton,  180;    Loper, 
189;    Lull,    192,   193;    Lyell.    194;     Marcou,    198,    199:     Marsh, 
203.  204.  205,  206.  207;    Mather,  212;    Miller,  219;    Newberry, 
221 ;    Rice  and  Gregory,  243a ;    Silliman,  277. 
Portland  —  Johnston,  174;  Merrill,  217,  218;  U.   S.  Geol.  Surv., 

282. 
red  color  —  Dana,  68;    Russell.  252. 


No.    8.]    •    BIBLIOGRAPHY  ^F    CONNECTICUT    GEOLOGY.  121 

Structure  —  Dana,  46.  55;    Davis,  83,  84,  85,  86,  89,  92,  93,  98; 

Hobbs,  155;    Percival,  229;    Rice  and  Gregory,  243a;    Rogers, 

246,   247;    Russell,   249,   251,   253;    Silliman,   267;    Smith,   279; 

Wells,  291,  292;  Whelpley,  296. 
Triassic  soil  —  Dorsey,  106;  Fippin,  116;  Killebrew,  175;  Maclure,  197. 
Triassic  trap,  acid  dike  —  Hovey,  163. 

age  —  Dana,  T},^  75;    Davis,  98;    Hobbs,  155;    Rice  and  Gregory, 

243a. 
ash-bed  —  Chapin,  15;  Davis,  87;  Emerson,  iii. 
basic  dike  —  Griswold,   125;    Rice  and  Gregory,  243a. 
bitumen  —  Dana,  44  ;     Percival,  229 ;    Russell,  250. 
comparison  of  Connecticut  with  New  Jersey  and  other  localities 

—  Dana,  21,  36;    Davis,  78,  82;    Frazer,  117;    Hawes,  128,  130; 

Hobbs,  155 ;  Russell,  253. 
description,  general — -Davis,  98;    Markham,  201;    Percival,  229; 

Porter,  234;    Pynchon,  236;    Rice  and  Gregory,  243a;    Russell, 

253;    Silliman,  260.  265,  266;    Smith,  279. 
East  Haven  —  Hovey,  162. 
fissures  —  Davis,  90,  98. 
garnets  with  —  Dana,  22. 
Holyoke  diabase  —  Emerson,  112. 
junction  with  sandstone,  Wallingford  —  Chapin,  13. 
lithological  character  —  Dana,  21,  50;    Hawes,   128,   130;    Hobbs, 

155 ;  Rice  and  Gregory,  243a. 
Meriden  — Chapin.   14;    Dana,  30;    Davis,  84,  87,  88,  90,  97,  98. 
New  Haven  —  Dana,   38,   71,   72,   74;    Hawes,    128,    130;    Porter, 

234;    Silliman,  260,  262. 
origin  —  Cooper,    18;     Dana,   57,   75;     Davis,   78,   82,   83,  93,  98; 

Hobbs,  155 ;    Hovey,  162 ;    Lyman.   195 ;    Rice,  241 ;    Rice  and 

Gregory,  243a  ;    Russell,  249,  253  ;    Silliman,  272,  276. 
Pomperaug   valley  —  Hobbs,    155;    Percival,    229;    Silliman,    265. 
ranges  —  Dana,  24. 
tuff  —  Hitchcock,  143. 
Triassic  volcanoes  —  Davis,  95;   Markham.  201. 
Trumbull,  geology — Percival,  229;    Rice  and   Gregory,  243a. 

old  tungsten  mine  —  Gurlt,  126;  Hobbs,   156,  159. 
Tuff  —  Hitchcock.  143. 
Tungsten  mine  at  Trumbull  —  Gurlt,  126;   Hobbs,   156,   159. 

map  —  Hobbs,  561,  562. 
Twin  lakes  valley,  key  area  for  study  of  faults  —  Hobbs,  160. 


u 

Upham,  W.,  Abstract  of  "  Some  typical  eskers  of  southern  New  Eng- 
land," Woodworth  —  Upham,  284. 

criticism  of  theory  of  kames  ■ — Dana,  51. 

Succession  of  Glacial  deposition  in  New  England  —  Upham,  283. 
Union,  geology — Percival,  229;    "Rice  and  Gregory,  243a. 
United  States  Geogical  Survey  —  282. 

annual   reports  —  282. 

map  of  United  States  —  585. 

mineral  resources  of  United  States  —  282. 

topographic  atlas,   Connecticut  —  586. 

topographic  map,  Connecticut  —  587. 

water  supply  and  irrigation  papers  —  282. 

work  in  Connecticut  —  Gregory  and  Robinson,   124c. 


122  CONNECTICUT   GEOL.    AND    N.'\;r.    HIST.    SURVEY.        [BuU. 


Valcherville,  M.  de,  Highland  park,  Mancl>ester  —  Valcherville,  285. 

Vernon,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 

Vineyard  gap,  map  —  Davis,  526. 

Volcanic  and  seismic  disturbances  —  Markham,  201. 

Volcanoes,  and  volcanic  substances  —  Cooper,  18. 

Connecticut  valley — -Hitchcock,  142,  143. 

facts  concerning,  and  products  —  Cooper,  18. 

lost  volcanoes  of  Connecticut  —  Davis,  95. 


W 

Wacke,  Salisbury  —  Lee,  185. 

Walcott,  C.  D.,  Correlation  papers,  Cambrian  —  Walcott,  288. 

Synopsis  of  conclusions   on   "  Taconic  of   Emmons  "  —  Walcott, 
287. 

Taconic  system,  286. 
Wallingford,  copper  —  Silliman,  264. 

description  of  Triassic  —  Davis,  82,  98. 

excursion  to  Meriden  —  Dana,  30. 

geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 

junction  of  trap  and  sandstone  —  Chapin,  13. 
Warren,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 
Warren,  J.  C.,  Geological  position  of  the  mastodon  —  Warren,  289. 
Washington,  geology  — ■  Percival,  229 ;    Rice  and  Gregory,  243a. 

minerals  —  Brace,  9. 
Water  cement  of   Southington  —  Lowrey,   191. 
Water  courses  and  alluvial  and  rock  formations  —  Smith,  279. 
Water  supply  —  Gregory,  123,  124. 
Water  supply  and  irrigation  papers  —  282. 
Waterbury,  geology — Percival,  229;    Rice  and  Gregory,  243a. 

sewage  conditions  —  Rafter,  240. 
Waterbury  gneiss  —  Rice  and  Gregory,  243a. 
Watertown,  description — Silliman,  265. 

geology  —  Percival,  229. 
Webster,  J.  W.,  Localities  of  minerals  —  Webster,  290. 
Well  and  spring  records  —  Gregory,  123. 
Wells,  deep  borings  —  282. 

drilled,  in  Triassic  area  —  Pynchon,  239. 
Wells,    D.    A.,    Connecticut   valley    sandstone    formation  —  Wells,   291. 

Evidence  of  glacial  action  —  Wells,  293. 

Origin  of  stratification  —  Wells,  292. 

Remarkable  bowlders  —  Wells,  294. 
West  Haven,  greenstone  —  Hitchcock,  136. 
West  peak.     See  Meriden. 
West  river,  map  —  Dana,  513. 
West  Rock,  criticism  of  Dr.  Hawes'  article  —  Dana,  50. 

description  —  Dana,  71,  72. 

difference  between  East  and  West  rocks — Porter,  234. 

map- — Dana,  516,  517. 

trap — Dana,  21;    Davis,  98,  100;    Hawes,  128;    Rice  and  Greg- 
ory, 243a. 
Westbrook,  geology  —  Percival,  229. 

Westerly  granite  —  Kemp,  177;    Rice  and  Gregory,  243a. 
Western  Connecticut,  map  —  Martin,  574. 
Western  discharge  of  the  flooded  Connecticut  —  Dana,  56. 


No.    8.]        BIBLIOGRAPHY   OF    CONNECTICUT    GEOLOGY.  I23 

Westfield,  bituminous   formation  —  Brongniart,    10. 

fish  impressions  —  Hitchcock,  136 ;    Silliman,  263. 

fossils  —  Loper,   i8g. 

geologic  section  —  Rice  and  Gregory,  243a. 
Westgate,  L.  G.,  Granite  gneiss  in  central  Connecticut  —  Westgate,  295. 
Weston,  geology — Percival,  329;    Rice  and  Gregory,  243a. 

meteorite  —  Gibb,   122;     Silliman,  261. 
Westport,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 
Wethersfield,  fossil  foot-prints  —  Hitchcock,  144,  146. 

geology  —  Percival,  229. 
Whelpley,  J.  D.,  Trap  and  sandstone  of  Connecticut  valley  —  Whelpley, 

296. 

Whigville,  copper  mine  —  Hulbert,  165.     See  also,  Bristol,  copper  mine. 

Whitney,  J.  D.,  and  Silliman,  B.,  Jr.,  Notice  of  the  geological  position 

and    character    of    copper    mine    at    Bristol  —  Whitney    and 

Silliman,  297. 

Whittle,   C.   L.,   and   Davis,   W.   M.,   Intrusive   and   extrusive   Triassic 

sheets  —  Davis  and  Whittle,  100. 
Williams,  S.,  Observations  and  conjectures  on  the  earthquakes  of  New 

England  —  Williams,  299. 
Willimantic,  former  ice  dams  —  Koons,  181. 
Willimantic  gneiss  —  Rice  and  Gregory,  243a. 
Windham,  geology  —  Percival,  229 ;  Rice  and  Gregory,  243a. 
Wilton,  geology — Percival,  229;    Rice  and  Gregory,  243a. 
Winchell,  N.  H.,  Comparative  strength  of  Minnesota  and  New  England 

granites  —  Winchell,  300. 
Winchester,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 
Windham,  geology  —  Percival,  229 ;  Rice  and  Gregory,  243a. 
Windham  county,  geological  map  —  Mather,  210,  575. 

sketch  of  geology,  Mather,  211. 
Windsor,  clays  —  Loughlin,  190 ;    Stodder,  281. 

geology  —  Percival,  229;  Rice  and  Gregory,  243a. 
Windsor  sand  —  Dorsey,  106;  Fippin,  116. 
Winnepaug,  granite  —  Newberry,  220. 
Winsted,  map  —  Hobbs,  559. 

Still  river  —  Hobbs,  157;  Rice  and  Gregory,  243a. 
Wintergreen  notch  —  Dana,  516. 

Wolcott,  geology — Percival,  229;    Rice  and  Gregory,  243a. 
Wolfram,  Lane's  mine  —  Hitchcock,  137. 

Long  hill  —  Gurlt,  126;  Hobbs,  156,  159. 
Woodbridge,  geology  —  Dana,  71 ;    Percival,  229 ;    Rice  and  Gregory, 
243a. 

great  bowlder  —  Dana,  71;    Hubbard,  164. 
Woodbury,  description  —  Hitchcock,   142 ;    Silliman,  265. 

dikes  —  Whelpley,  296. 

geologj^  —  Hobbs,  155;  Percival,  229. 

maps  —  Davis,  520;    Hobbs,  553,  556. 

minerals  —  Hitchcock,  137. 
Woodstock,  geology  —  Percival,  229 ;    Rice  and  Gregory,  243a. 

glacial  remains  —  Eggleston,  109,  534. 
Woodstock  quartz  schist  —  Rice  and  Gregory,  243a. 
Woodworth,  J.  B.,  Some  typical  eskers  of  southern  New  England  — 
Woodworth,  301. 


Zinc,  Salisbury  —  Lee,  185. 


ADVERTISEMENT. 

List   of   Bulletins  of   the   State    Geological    and    Natural 
History  Survey  of  Connecticut. 


1.  First  Biennial  Report  of  the  Commissioners  of  the 
State  Geological  and  Natural  History  Survey,  1903- 1904. 

2.  A  Preliminary  Report  on  the  Protozoa  of  the  Fresh 
Waters  of  Connecticut ;  by  Herbert  William  Conn. 

3.  A  Preliminary  Report  on  the  Hymeniales  of  Connecti- 
cut ;  by  Edward  Albert  White. 

4.  The  Clays  and  Clay  Industries  of  Connecticut ;  by 
Gerald  Francis  Loughlin. 

5.  The  Ustilagineae,  or  Smuts,  of  Connecticut;  by  George 
Perkins  Clinton. 

6.  Manual  of  the  Geology  of  Connecticut ;  by  William 
North  Rice  and  Herbert  Ernest  Gregory. 

7.  Preliminary  Geological  Map  of  Connecticut ;  by  Her- 
bert Ernest  Gregory  and  Henry  Hollister  Robinson. 

8.  Bibliography  of  Connecticut  Geology ;  by  Herbert 
Ernest  Gregory. 

9.  Second  Biennial  Report  of  the  Commissioners  of  the 
State  Geological  and  Natural  History  Survey,  1905-1906, 

Bulletins  i  and  9  are  merely  administrative  reports,  con- 
taining no  scientific  matter.  The  other  bulletins  may  be  classi- 
fied as  follows :  — 

Geology ;   Bulletins  4,  6,  7,  8. 

Botany  ;   Bulletins  3,  5. 

Zoology ;  Bulletin  2. 

Tliese  bulletins  are  sold  and  otherwise  distributed  by  the 
State  Librarian.  The  prices  are  as  follows  :  No.  i,  $0.05  ;  No. 
2,  .35;  No.  3,  .40;  No.  4,  .30;  No.  5,  .15;  No.  6,  .50;  No. 
7,  .60*;  No.  8,  .20;  No.  9,  .05. 

It  is  intended  to  follow  a  liberal  policy  in  gratuitously 
distributing  these  publications  to  public  libraries,  colleges, 
and  scientific  institutions,  and  to  scientific  men,  teachers,  and 
others  who  require  particular  bulletins  for  their  work,  es- 
pecially to  those  who  are  citizens  of  Connecticut. 

Applications  or  inquiries  should  be  addressed  to 

George  S.  Godard, 
State  Librarian, 

Hartford,  Conn. 


*If  map  is  mounted  as  a  wall  map,  and  sent  by  expreiis,'$i.6o. 


CATALOGUE     SLIPS. 


Connecticut,   State  geological  and  natural  history  survey. 

Bulletin  no.  8.      Bibliography  of    the   geology   of 
Connecticut.     By  H.  E.  Gregory.     Hartford,  1907. 


123  pp.,  2y 


Gregory f  Herbert  JEruest, 

Bibliography   of  the  geology  of  Connecticut.     By 
Herbert  Ernest  Gregory.     Hartford,  1907. 

123  pp.,  23''°\ 

(Bulletin  no.  8,  Connecticut  geological  and  natural  history  survey.; 


CATALOGUE   SLIPS. 


Geology, 

Gregory,  H,  E.     Bibliography    of   the    geology    of 
Connecticut.     Hartford,  1907. 

123  pp.,  23  '•™. 

(Bulletin  no.  8,  Connecticut  geological  and  natural  history  survey.)    - 


Bihliogrcvphy. 

Gregory,  H.  E.     Bibliography   of   the    geology    of 
Connecticut.     Hartford,  1907. 

123  pp.,  23'''". 

(Bulletin  no.  8,  Connecticut  geological  and  natural  history  survey.) 


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